he state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through 14 ) below. 69 72 ssume the population is normally distributed. 62 Find the sample mean. (Round to one decimal place as needed.) O Find the sample standard deviation. (Round to one decimal place as needed.) Construct a 95% confidence interval for the population mean u. 95% confidence interval for the population mean is (O). ound to one decimal place as needed.)

Question
he state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through 14
) below.
69
72
ssume the population is normally distributed.
62
Find the sample mean.
(Round to one decimal place as needed.)
O Find the sample standard deviation.
(Round to one decimal place as needed.)
Construct a 95% confidence interval for the population mean u.
95% confidence interval for the population mean is (O).
ound to one decimal place as needed.)
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Transcribed Image Text

he state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through 14 ) below. 69 72 ssume the population is normally distributed. 62 Find the sample mean. (Round to one decimal place as needed.) O Find the sample standard deviation. (Round to one decimal place as needed.) Construct a 95% confidence interval for the population mean u. 95% confidence interval for the population mean is (O). ound to one decimal place as needed.)

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