A simple random sample is drawn from a normally distributed population, and when making a statistical inference about the popula

Question

2 years ago

8

A simple random sample is drawn from a normally distributed population, and when making a statistical inference about the popula

tion mean, the margin of error is found to be 5.9 at a 95% level of confidence. If the mean of the sample is 18.7, what is the 95% confidence interval for the population mean?

Mathematics

2 answers:

DiKsa [7] · Answer 1 · 2022-08-28T18:16:54+03:00

DiKsa [7]2 years ago

3 0

<span>To find the confidence interval, add and subtract the margin of error from the mean. With mean 18.7 and margin of error 5.9, you have 95% confidence the answer is between 12.8 and 24.6.</span>

V125BC [204] · Answer 2 · 2022-08-28T20:37:55+03:00

V125BC [204]2 years ago

3 0

Answer:

B. 18.7 ± 9.7

Step-by-step explanation: