Entries by Grace Wahito

Students in a class take a quiz with eight questions. The number x of questions answered correctly

February 28, 2020 in /by

Students in a class take a quiz with eight questions. The number x of questions answered correctly can be approximated by the following probability distribution. Complete parts(a) through(e). ATTACHMENT PREVIEW Download attachment   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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se the normal distribution of SAT critical reading scores for which the mean is 504and the standard deviation is 111. Assume the variable x is normally distributed.

February 28, 2020 in /by

se the normal distribution of SAT critical reading scores for which the mean is 504and the standard deviation is 111. Assume the variable x is normally distributed.   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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A doctor wants to estimate the HDL cholesterol of all20- to29-year-old females.

February 28, 2020 in /by

A doctor wants to estimate the HDL cholesterol of all20- to29-year-old females. How many subjects are needed to estimate the HDL cholesterol within 33 points with 99 % confidence assuming σ=18.9? Suppose the doctor would be content with 90  confidence. How does the decrease in confidence affect the sample sizerequired? ATTACHMENT PREVIEW Download attachment   Looking for […]

 

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Q11-In a survey of 8000women,5431say they change their nail polish once a week

February 28, 2020 in /by

Q11-In a survey of 8000women,5431say they change their nail polish once a week. Construct a 90  confidence interval for the population proportion of women who change their nail polish once a week. A 90% confidence interval for the population proportion iS= Q14-SEE ATTACHED FILE “14” Q15-SEE ATTACHED FIL E”15″ Attachment 1 Attachment 2 Attachment 3 […]

 

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