Score: 0 of 6 pts 5 ot 10 (4 Hw Score: 3714%, 2229 ofe 7.3.15 Help nate o ime-t

Question

Score: 0 of 6 pts 5 ot 10 (4 Hw Score: 3714%, 2229 ofe 7.3.15 Help nate o ime-t m i gak for 1 . ingchie teol42 ects were treated wh gak na pressed tablet frm Chol sle levels of LDL cholesterol (in mgldl.) have a mean of 3 6 and a standard deviation of 17 5. Complede parts (a) and (b) below levets were measured beton and a rte treat nt The charges n ter Click standard normal distrbston table of thea a. What is the best point estimate of the population mean net change in LDL cholesterol ater the garic treatment? The best port estmae 36 mpa. (Type an integer or a decimal) the effec in reducing cholesterol? What is the confidence interval estimate of the population mean u? Round to two decimal places as needed)

Explanation / Answer

a)

best point estimate =3.6

b)

95% CI =-1.69 ; 8.89

sample mean xbar= 3.6 sample size                 n= 42 population std deviation = 17.5 standard errror of mean = x=/n= 2.7003

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