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I need help with this question. How would I determine

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Get college assignment help at Smashing Essays Question I need help with this question. How would I determine the test statistic and test for the decision at 99.9% confidence? Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment 62239404_1191711764371610_4421000383996887040_n.jpg in these data and using the dependent sample analysis approach, test the claim at 95% onfidence that the urine cotinine concentrations in the truck cab were higher than those at home. a) State the Null and Alternative Hypotheses (1) b) Prepare the PDF and state the Decision Rule (1,1) C) Determine the test statistic (2) d) State your decision (1) e) State the interpretation. (1) f) Is your decision the same at 99.9% confidence? Explain. (1,2) ATTACHMENT PREVIEW Download attachment 65586668_482704629200586_5343528057456033792_n.jpg gestion #4. (10 marks)_Lecture Week 6, Lecture 1 There have been many studies trying to link the association between different biomarkers and environmental measures of second hand smoke (SHS). Cotinine is the gold standard biomarker for airborne nicotine and in particular for SHS exposure assessment in children with asthma (Household Smoking Behavior: Effects on Indoor Air Quality and Health of Urban Children with Asthma, Buty, Breysse, et. Al, Matern Child Heath J (2011) 15:460-468) The bad thing about urine cotinine levels is that it is persistent and stays in the body for extended periods of time. So trying to relate urine cotinine to the number of cigarettes smoked in a home is really quite a hard thing to do because of this latent feature. 100 Urine Cotirins (ng/ml) A new study was designed to measure the 30 urine cotinine levels of long-distant haulers (truckers) who smoked. The study was trying 10 to get an understanding of SHS in a confined area (the cab of the big rig) and an open area of the home Nine truckers were recruited for the study and the results were as follows. The 20 40 condition being that the truckers had to be Number of cigarettes smoked by all smokers driving for a period of at least 8 hours and then their urine was immediately sampled versus the same trucker at home for at least one day before their urine was sampled. The truckers were not to deviate from their smoking habits. In other words, if they smoke six cigarettes every 8 hours in the truck, then they smoked six cigarettes every 8 hours at home. Cotinine Concentrations (ng/ml) Driver Truck Cab Home 295 282 4 CO V QT UT A W N H 286 280 289 270 425 410 345 330 405 395 365 371 424 408 283 263 Page 8 Assignment #2; HSLC 3800 Summer 2019Read more

Why is it that t value from a t.test() in

Question Why is it that t value from a t.test() in R is the same t value using lm() but has the opposite sign. Example:summary(lm(values ~ groups, data = sim_data))vs.t.test(values ~ groups, data = sim_data, var.equal = TRUE)groups = factor with levels “A” and “B”

The variables are:death: the outcome variable, coded 1 if the

Question The variables are:death: the outcome variable, coded 1 if the person received the death penalty and 0 otherwiseblackd: coded 1 if the defendant was black and 0 otherwisewhitvic: coded 1 if the victim of the crime was white and 0 otherwiseserious: a score, between 1 and 15, indicating the seriousness of the crimeculp: integer values between 1 and 5 (5 denotes high culpability), based on a number of aggravating and mitigating circumstances.The aim of the analysis is to determine whether race (in as much as it is crudely captured in the data) plays a role in assigning the death penalty, after adjusting for the seriousness and culpability associated with the crime.a) Fit a model which contains the race of both the defendant and the victim, serious, and culp. Treat both serious and culp as continuous variables. Answer the primary research question: does race play a role in sentencing. Justify your answer.

A large company is concerned about the commute times of

Question A large company is concerned about the commute times of its employees. Of the 333 employees who were surveyed, 131 said that they had a daily commute longer than 30minutes. Show a 95% confidence interval for the proportion of employees who have a daily commute longer than 30 minutes. Use Excel to create the confidence interval, rounding to four decimal places.

A project includes activities A to G. Their estimated duration

Question A project includes activities A to G. Their estimated duration (in weeks) is shown in the table below, where the critical path includes activities B – D – E – G. ATTACHMENT PREVIEW Download attachment Capture 3.PNG

Electiric bike will be manufactured at your facility. During the

Question Electiric bike will be manufactured at your facility. During the manufacturing planning phase, you decide to include an inspection step in the manufacturing process to determine whether the parts are within specification for length. Parts are to be automatically sorted between good parts and bad parts. Bad parts will be rejected. If any part is rejected, it costs the company $5 per part in waste. But if a bad part is classified as a good part, it is expected to cost the company $1,000 from future legal liabilities and warranty claims.During the manufacturing process design phase, your team meets with a vendor who sells laser sensors which measure length to within your desired measurement accuracy. These sensors will be mounted over the assembly line conveyor belt, measure the length of the parts as they go by, and output a logical “1” if the part is good and “0” if the part is bad.Let x and y define the following random outcomes:The vendor tells you that the probability the sensor passes a part given that it is good is 98% and the probability it passes a part given it is bad is 0.1%. Suppose that the probability of a part being bad is 1%. ATTACHMENT PREVIEW Download attachment Capture 4.PNG

A startup company is launching electric bike that is aimed

Question A startup company is launching electric bike that is aimed at replacing vehicle trips. The cost of 10 miles of daily transport over a year in an electric bike is $5.86 per year compared to $370.20 per year in a conventional vehicle. The probability density function for failure of the electric bike, based on the expected usage level per year from the average purchaser, is Weibull distributed with shape and scaling parameters as follows: k = 2.5 and λ = 4.0

The owner of a restaurant is reviewing customer complaints. In

Question The owner of a restaurant is reviewing customer complaints. In a random sample of 227 complaints, 57 complaints were about the slow speed of the service. show a 95%confidence interval for the proportion of complaints that were about the slow speed of the service. Use Excel to create the confidence interval, rounding to four decimal places.

I already have the answer I think is correct please

Question I already have the answer I think is correct please just double check my work. Thank you! ATTACHMENT PREVIEW Download attachment stupid.PNG

Please confirm I have the correct answer. Thank you! ATTACHMENT

Question Please confirm I have the correct answer. Thank you! ATTACHMENT PREVIEW Download attachment dumb.PNG

In a survey of 603 style=”color:rgb(72,72,72);”> adults, 98 said that

Get college assignment help at Smashing Essays Question In a survey of 603 style=”color:rgb(72,72,72);”> adults, 98 said that they regularly lie to people conducting surveys. show a 99% confidence interval for the proportion of adults who regularly lie to people conducting surveys. Use Excel to create the confidence interval, rounding to four decimal places.

A poultry experiment was run to investigate the effect of

Question A poultry experiment was run to investigate the effect of diet and antibiotic on egg production. They evaluated 2 diets of interest, and 2 specific antibiotics of interest. The feed and antibiotic were combined and used to fill a single feeding tray in each barn. They chose 3 poultry farms at random and used 4 barns on each farm to accommodate the combinations of diet and antibiotic (assigned at random). Average egg production per chicken was recorded after 4 weeks. What is the treatment design? How many replications are there? What is the experimental design? Of the Farms, Barns, Diet, and Antibiotic, which variables are fixed factors, which are random factors, and which are the experimental units?

of the cartons produced by a company, 5% have a

Question of the cartons produced by a company, 5% have a puncture, 7% have a smashed corner, and 1.2% have both a puncture and a smashed corner. Find the probability that a randomly selected carton has a puncture or has a smashed corner.

how do you solve question 5?

Question how do you solve question 5?

Hello!My name is Katrina and I desperately need help. Res866

Question Hello!My name is Katrina and I desperately need help. Res866 module 2 How do you create standardize scores for all scale variables priced through Alcohol?

Gary is studying the prevalence of regional dialects. He surveyed

Question Gary is studying the prevalence of regional dialects. He surveyed 351 people in a region and asked what words they used for certain things. Gary found that 292 of the respondents referred to soft drinks as “pop,” as opposed to “soda” or “cola.” Show a 90% confidence interval for the proportion of people in this region who refer to soft drinks as “pop.” Use Excel to create the confidence interval, rounding to four decimal places.

A business magazine conducted a survey of 751 style=”color:rgb(72,72,72);”> employees

Question A business magazine conducted a survey of 751 style=”color:rgb(72,72,72);”> employees who had been at their current employer for 5 or more years. Of these employees, 295 responded that they were bored in their current position. show a 99% confidence interval for the proportion of employees who have been with their current employer for 5 or more years and reported being bored in their current position. Use Excel to create the confidence interval, rounding to four decimal places.

Suppose that a polygraph is​ 90% accurate​ (it will correctly

Question Suppose that a polygraph is​ 90% accurate​ (it will correctly detect​ 90% of people who are lying and it will correctly detect​ 90% of people who are telling the​ truth). The 1 comma 9401,940 employees of a company are given a polygraph test during which they are asked whether they use drugs. Assume that anyone whom the polygraph operator finds untruthful is accused of lying. Complete parts​ (a) and​ (b).How many employees accused of lying were actually lying? How many employees accused of lying were telling the truth? What percentage of those accused of lying were falsely accused? 

I solved these problems but want to double check my

Question I solved these problems but want to double check my answers unbiasedly.1. Lord Raleigh studied the density of nitrogen and conjectured that nitrogen producedfrom chemical compounds tended to be lower than the densities of nitrogen produced  from the air. His measurements were as follows:A. Calculate the summary statistics for each set of data (mean, standard deviation, five-number summary)B. What is the interquartile range of each data set? Identify the interval of values that defines the IQR. C. Do the samples appear to be from the same population? Why or why not? Support your answer with numerical facts and convincing reasons and explanations.2. The ages of the Oscar-winners for best actor and actress for the years 1970 through 1990 are given below:Women: 34,34,26,37,42,41,35,31,41,33,30,74,33,49,38,61,21,41,26,80,72Men:      43, 40,48,48,56,38,60,32,40,42,37,76,39,55,45,35,61,33,51,32,42Use what you have learned in this Unit to discuss apparent difference in the ages of Oscar-winning men and women. Use both a numerical and graphical argument. ATTACHMENT PREVIEW Download attachment Screen Shot 2019-07-01 at 11.08.22 PM.png

A relative frequency polygon:a) Shows the shape of the raw

Question A relative frequency polygon:a) Shows the shape of the raw data distribution />b) Shows the percent of values in each groupc) Is a line graphd) A and Ce) B and C

Im really struggling with this ATTACHMENT PREVIEW Download attachment Screen

Question Im really struggling with this ATTACHMENT PREVIEW Download attachment Screen Shot 2019-07-01 at 8.37.48 PM.png A study of beef hot dogs was done in which .t represents the number of calories for beef hot dogs with at most 200 calories, and 3: represents the sodium content (in mg}. The equation of the regression line is j}:—299.43 4.35x , and the linear correlation coefficient is 0.93. Predict the average sodium content (in mg} for a beef hot dog i. which has 160 calories. (Express nonver- ro mo decmmlplaces.) Which statement correctly interprets the slope of the regression line? ii. a} As the number of calories increases by l, the average sodium content decreases by 299.48 mg. b} As the number of calories increases by l, the average sodium content increases by 299.48 mg. c} As the number of calories increases by l, the average sodium content decreases by 4.35 mg. d} As the number of calories increases by l, the average sodium content increases by 4.35 mg. Which of the following statements describes the linear correlation between iii. the number of calories and the sodium content of a beef hot dog? a} Increasing the number of calories causes the sodium content to increase. b} There is no relationship between the number of calories and the sodium content. c} Higher numbers of calories are associated with higher sodium contents. d} Higher numbers of calories are associated with lower sodium contents.

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