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The state test scores for 12 randomly selected high school seniors are shown on the right. Complete 1430 parts (a) throu
Posted: Tue Jul 05, 2022 9:19 am
by answerhappygod
- The State Test Scores For 12 Randomly Selected High School Seniors Are Shown On The Right Complete 1430 Parts A Throu 1 (18.4 KiB) Viewed 13 times
The state test scores for 12 randomly selected high school seniors are shown on the right. Complete 1430 parts (a) through (c) below. 700 723 Assume the population is normally distributed. 629 (a) Find the sample mean. x=911.2 (Round to one decimal place as needed.) (b) Find the sample standard deviation. = 303.8 (Round to one decimal place as needed.) (c) Construct a 90% confidence interval for the population mean ยต. A 90% confidence interval for the population mean is (0) (Round to one decimal place as needed.) AUD 1223 727 743 1443 988 830 550 948 0