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Assume that in one of the classes the student has

/in /by

Question Assume that in one of the classes the student has earned test scores of 76, 80, 52, 78 and only one test remains.a.1.) If the student needs a mean score of 70 to earn a​ C, then what must the student obtain on the final​ test?b.2.) If the student needs a mean score of 80 to earn a​ B, then what must the student obtain on the final​ test?1.)_________2.)_________

I was working this with another person and they got

Question I was working this with another person and they got me started but I am not sure if I am following the correct process ATTACHMENT PREVIEW Download attachment IMG_4084.jpg 12. Clinical Trials of OxyContin OxyContin (oxycodone) is a drug used to treat pain, but it is well known for its addictiveness and danger. In a clinical trial, among subjects treated with OxyContin, 52 developed nausea and 175 did not develop nausea. Among other subjects given placebos, 5 developed nausea and 40 did not develop nausea (based on data from Purdue Pharma L.P.). Use a 0:05 significance level to test for a difference between the rates of nausea for those treated with OxyContin and those given a placebo. a. Use a hypothesis test. b. Use an appropriate confidence interval. c. Does nausea appear to be an adverse reaction resulting from Oxy Contin? .

Under what circumstances would you obtain a very large value

Question Under what circumstances would you obtain a very large value for chi-square (how would the observed frequencies compare to the expected frequencies?) What would you conclude if the obtained chi-square value was really small?

A student conducts a survey for her class project. She

Question A student conducts a survey for her class project. She asks 33 other students a series of questions about their study habits. She knows from previous research that 0.55 of all students study for 4 or more hours per day. If 0.41 of her own sample study for 4 or more hours per day, what is the probability of observing this sample proportion or less?

I was able to compute the first part, but I

Question I was able to compute the first part, but I am struggling with the prediction part. Thank you /> ATTACHMENT PREVIEW Download attachment question 1.JPG

The least-squares line usually does not go through all the

Question The least-squares line usually does not go through all the sample data points (x, y). In fact, for a specifiedxvalue from a data pair (x, y), there is usually a difference between the predicted value and they value paired withx. This difference is called theresidual.The residual is the difference between the y value in a specified data pair (x, y) and the value  = a bx predicted by the least-squares line for the same x.y –  is the residual.One way to assess how well a least-squares line serves as a model for the data is aresidual plot. To make a residual plot, we put thexvalues in order on the horizontal axis and plot the corresponding residuals (y-) in the vertical direction. Because the mean of the residuals is always zero for a least-squares model, we place a horizontal line at zero. The accompanying figure shows a residual plot for the data of a study in which the relationship between the number of ads run per week and the number of cars sold that week was explored. To make the residual plot, first compute all the residuals. Remember thatxandyare the given data values, andis computed from the least-squares line≈6.56 1.01x.Residualxyy – 61512.62.4203126.84.20106.63.4141620.7-4.7252831.8-3.8(a) If the least-squares line provides a reasonable model for the data, the pattern of points in the plot will seem random and unstructured about the horizontal line at 0. Is this the case for the residual plot? No. The pattern of residuals does not appear randomly scattered around the horizontal line at 0.Yes. The pattern of residuals appears randomly scattered around the horizontal line at 0.     No. The pattern of residuals appears randomly scattered around the horizontal line at 0.Yes. The pattern of residuals does not appear randomly scattered around the horizontal line at 0.(b) If a point on the residual plot seems far outside the pattern of other points, it might reflect an unusual data point (x, y), called an outlier. Such points may have quite an influence on the least-squares model. Do there appear to be any outliers in the data for the residual plot? Yes. There appear to be outliers.Yes. There do not appear to be any outliers.     No. There appear to be outliers.No. There do not appear to be any outliers.

(a) Suppose you are given the following (x style=”color:rgb(0,0,0);”>, y)

Question (a) Suppose you are given the following (x style=”color:rgb(0,0,0);”>, y) data pairs.x134y219Find the least-squares equation for these data (rounded to three digits after the decimal).ŷ =     x(b) Now suppose you are given these (x, y) data pairs.x219y134Find the least-squares equation for these data (rounded to three digits after the decimal).ŷ =     x (c) In the data for parts (a) and (b), did we simply exchange the x and y values of each data pair?YesNo     (d) Solve your answer from part (a) for x (rounded to three digits after the decimal).x =     y Do you get the least-squares equation of part (b) with the symbols x and y exchanged?YesNo     (e) In general, suppose we have the least-squares equation y = a   bx for a set of data pairs (x, y). If we solve this equation for x, will we necessarily get the least-squares equation for the set of data pairs (y, x), (with x and y exchanged)? Explain using parts (a) through (d).Switching x and y values sometimes produces the same least-squares equation and sometimes it is different.In general, switching x and y values produces the same least-squares equation.     In general, switching x and y values produces a different least-squares equation.

Let x = boiler steam pressure in 100 lb/ in2

Question Let x = boiler steam pressure in 100 lb/ in2 and let y = critical sheer strength of boiler plate steel joints in tons/ in2. We have the following data for a series of factory boilers.x456810y3.44.26.310.913.3(a) Make the logarithmic transformations x’ = log (x) and y’ = log (y). Then make a scatter plot of the (x’, y’) values. Does a linear equation seem to be a good fit to this plot? The transformed data does not fit a straight line well. The data seem to explode as x decreases.The transformed data fit a straight line well.     The transformed data does not fit a straight line well. The data seem to have a parabolic shape.The transformed data does not fit a straight line well. The data seem to explode as x increases.(b) Use the (x’, y’) data points and a calculator with regression keys to find the least-squares equation y’ = a bx’. What is the correlation coefficient? (Use 3 decimal places.)y’=    x’r= (c) Use the results of part (b) to find estimates for α and β in the power law y = αxβ. Write the power equation for the relationship between steam pressure and sheer strength of boiler plate steel. (Use 3 decimal places.)α= β= = · x^ 

I have been stuck on this for ages and am

Question I have been stuck on this for ages and am out of options, can someone please help me to provide calculations and an answer for questions (a) and (b) listed below Attachment 1 Attachment 2 Attachment 3 ATTACHMENT PREVIEW Download attachment Screenshot_20190806-214246_Instagram.jpg 9:42 0 Cut all 12% sticelakota MATH-1020: Red River College Offers Pepsi an Exclusivity Agreement In the last few years, colleges and universities have signed exclusivity agreements with a variety of private companies. These exclusivity agreements obligate educational institutions to sell only beverage firms. that company’s products on campus; no competition. Many of the agreements involve food and Red River College (RRC) has a total annual enrollment of about 32,000 students. RRC has proposed to Pepsi-Cola an exclusivity agreement that would give Pepsi exclusive rights to sell its products at all RRC facilities and campuses for the next year and, an option for future years. In return, RRC would receive 40% of the on-campus revenues and an additional lump sum of $125,000 per year. Pepsi has been given one week to respond to the proposal. Your team represents the management at Pepsi. Here is what the management at Pepsi knows: The market for soft drinks is measured in terms of the equivalent of 591ml bottles. Pepsi currently sells an average of 14,000 bottles (or their equivalents) per week. RRC primarily operates over 40 weeks of the year. Bottles sell for an average price of $2.50 each. The costs of good sold amount to $0.75 per bottle. Pepsi is unsure of its market share but suspects it is considerably less than 50%. Pepsi’s current annual profit from RRC business is 40 weeks x 14,000 bottles x $1.75 per bottle = $980,000. A quick analysis reveals that if this level of market share hypothetically represented 25% market share, then with an exclusivity agreement Pepsi would sell 56,000 bottles per week or 100% of the market: . Annual sales would be 2,240,000 bottles per year (calculated as 56,000 bottles per week x 40 weeks). . Annual gross revenue would be 2,240,000 bottles x $2.50 revenue/bottle = $5,600,000. This figure is multiplied by 60% because RRC would be paid 40% of the gross revenue. Thus, 60% x $5,600,000 = $3,360,000. The total cost of 75 cents per bottle (or $1,680,000) and the annual payment to RRC of $125,000 is subtracted to obtain the net profit or $3,360,000 – $1,680,000 – $125,000 = $1,555,000. To complicate matters, Pepsi does not know how many soft drinks are sold weekly at RRC – thus Pepsi does not in fact know its market share. Coca-cola is not likely to supply Pepsi with information about its sales, which together with Pepsi’s line of products constitutes virtually the entire market. A recent graduate of the RRC Business Administration program believes that a survey of the students can supply the needed information. Accordingly, she organized a survey that asks 500 students to keep track of the number of soft drink bottles they purchase on campus over the next seven (7) days. A data summary of the findings are presented on the next page. RRC MATH1020 2019Read more ATTACHMENT PREVIEW Download attachment Screenshot_20190806-220827_Instagram.jpg P. 4 23 caze 12. 1 Due Aug 8 RED RIVER COLLEGE Statistics: MATH-1020 Case Study #2 OF APPLIED ARTS, SCIENCE AND TECHNOLOGY Business Administration Program INSTRUCTIONS AND POLICIES: The assignment MUST be completed in a group. o A group may be defined as 2 or 3 individuals. No other group sizes are permitted. Groups will NOT be assigned. Address all of the key case study issues. If anyone in the team is unclear on any requirement, please consult with the instructor. SUBMITTING YOUR ASSIGNMENT: The deadline no later than the start of class – Only hard copy submissions are accepted. The submission should include keyboarded answers, a suitable cover page, and be properly bound (staple or duo tang is acceptable). Limit to no more than five (5) pages. GRADING AND EVALUATION: This assignment is worth 5% of the final grade within the course. Late papers are accepted up to three (3) school days late Rubric is attached. The assignment will receive a 10% deduction for each school day it is late. ASSIGNMENT DETAILS:

I completed the first part. Just need additional help. Thanks!

Question I completed the first part. Just need additional help. Thanks! src=”/qa/attachment/9277059/” alt=”question 1.JPG” /> ATTACHMENT PREVIEW Download attachment question 1.JPG

Please match the number(problem) to the procedure alt=”Screen Shot 2019-08-07

Question Please match the number(problem) to the procedure alt=”Screen Shot 2019-08-07 at 5.04.44 PM.png” />Problems: Attachment 1 Attachment 2 Attachment 3 Attachment 4 ATTACHMENT PREVIEW Download attachment Screen Shot 2019-08-07 at 5.04.44 PM.png 1-tailed test of proportion with negative critical value 2—tailed test of mean with both negative and positive critical values 1-tailed test of mean with negative critical values 1-tailed test of paired—data with positive critical value 2—tailed test of means of 2 independent populations ATTACHMENT PREVIEW Download attachment Screen Shot 2019-08-07 at 5.04.57 PM.png Testing that a gasoline additive increases mileage, we compute mpg with additive minus mpg without additive for each car. If the mean of the differences is positive enough, action will be required to implement the additive. Run times (msec) of a new phone app developed by GotYourGP and established competitor WeTrackYou.|nc. are logged in a data file. At or = 0.05, are the run times of GotYourGP and WeTrackYou.|nc comparable? ATTACHMENT PREVIEW Download attachment Screen Shot 2019-08-07 at 5.05.05 PM.png Given weights of 31, 29, 26, 33, 40, 28, 30, and 25, at at = 0.05 test that the population mean is 35. Test size C battery mean life is at least 25 hours. ATTACHMENT PREVIEW Download attachment Screen Shot 2019-08-07 at 5.05.12 PM.png An effective vaccine would reduce the proportion of exposed persons contracting a disease. A pharmaceutical company wants to test the effectiveness of a new vaccine in preventing a certain disease. It is expected that 40% of unvaccinated exposed people will contract the disease. A group of 48 exposed persons volunteered to be vaccinated. Later, two of the volunteers contracted the disease. Test H0: 11 z 0.40 (vaccine ineffective) at or = 0.01.

in Health Care Policy [Due Day#] Wk 2 Individual Assignment: Key Players in Health Care Policy

Within our health care system there are a number of stakeholders that influence the health care policy development process and ultimately help shape our health care policies.This assignment will help you better understand the role and influences of the main stakeholders in the health care policy development process.Research the main stakeholders in the health care policy development process.Select one of the main stakeholders at the government level (federal or state), a professional organization, or an interest group.Write a 525- to 700-word paper that details the importance and impact this stakeholder has on the policy development process. Include the following in your paper: Cite at least 2 reputable references. Reputable references include trade or industry publications, government or agency websites, scholarly works, a textbook, or other sources of similar quality.Format your assignment according to APA guidelines.

Please help with the second part. Thank you…. src=”/qa/attachment/9277590/” />

Question Please help with the second part. Thank you…. src=”/qa/attachment/9277590/” /> ATTACHMENT PREVIEW Download attachment question 1.JPG

Not understanding where I am going wrong with the critical

Question Not understanding where I am going wrong with the critical values.Thanks! /> ATTACHMENT PREVIEW Download attachment question 1.JPG

I don’t know how they got these answers. Can you

Question I don’t know how they got these answers. Can you show me the formula and go step by step on how to solve this problem? Thanks, ATTACHMENT PREVIEW Download attachment Question 1.png O w Question 1 Q ~ Search in Document Home Insert Design Layout References Mailings Review View

Q3. See attachment ATTACHMENT PREVIEW Download attachment Q3.png Question 3

Question Q3. See attachment ATTACHMENT PREVIEW Download attachment Q3.png Question 3 For each of the given situations, write out the null and alternative hypotheses, being sure to state whether it is one-sided or two-sided. Complete parts a through c. a) A company reports that last year 52%% of its reports in accounting were on time. From a random sample this year, they want to know if that proportion has decreased. Complete the null and alternative hypotheses and determine whether the alternative hypothesis is one-sided or two-sided. Ho 0.52 VS. HA: 0.52 The alternative hypothesis is b) Last year, 31% of the employees enrolled in at least one wellness class at the company’s site. Using a survey, they want to know if a different percentage is planning to take a wellness class this year. Complete the null and alternative hypotheses and determine whether the alternative hypothesis is one-sided or two-sided. Hgi 0.31 vs. HA: 0.31 The alternative hypothesis is c) A political candidate wants to know from recent polls if she’s going to gamer less than a majority of votes in next week’s election. c) A political candidate wants to know from recent polls if she’s going to gamer less than a majority of votes in next week’s election. Complete the null and alternative hypotheses and determine whether the alternative hypothesis is one-sided or two-sided. 0.5 vs. HA 0.5 The alternative hypothesis is

Question 4. See attachment. ATTACHMENT PREVIEW Download attachment Q4.png O

Question Question 4. See attachment. ATTACHMENT PREVIEW Download attachment Q4.png O w Question 4 Q ~ Search in Document Home Insert Design Layout References Mailings Review View Share Calibri (Body) 12 A- A Aa Ap CE Paste I UV abe X2 X2 A .

Calculate the value of the test statistic. (Round to three

Question Calculate the value of the test statistic. (Round to three decimal places as​ needed.)Pvalue (Round to three decimal places as​ needed.) Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment question 1.JPG ATTACHMENT PREVIEW Download attachment table 1.JPG

Calculate the GPA using the chart provided. ATTACHMENT PREVIEW Download

Question Calculate the GPA using the chart provided. ATTACHMENT PREVIEW Download attachment ch1.png Many colleges assign numerical points to grades as A – 4, B – 3, C-2, D -1, and F -0. Find the grade point average for the following semester Course Credits Grade grade report Math B English Physics German History TOD The grade point average is . (Round to the nearest hundredth.)

If I am looking at heights and weights, which one

Question If I am looking at heights and weights, which one would be more likely to have the larger standard deviation and why? This was asked in my discussion and I need clarification.

Find the five-week mean using the chart provided. style=”background-color:rgb(255,255,255);color:rgb(0,0,0);”>The mean

Question Find the five-week mean using the chart provided. style=”background-color:rgb(255,255,255);color:rgb(0,0,0);”>The mean number of hours that Raphael worked over the past four weeks is 35.75. If he works 39hours this​ week, what will the mean number of hours be that he will have worked over the​ five-week period? ATTACHMENT PREVIEW Download attachment ch1.png The mean number of hours that Raphael worked over the past four weeks is 35.75. If he works 39 hours this week, what will the mean number of hours be that he will have worked over the five-week period? What is the five-week mean? (Simplify your answer.)

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