The state test scotes for 12 randomly selected high school seniors are shown on the right Complete parts (a) through (c)
Posted: Wed May 11, 2022 12:14 pm
The state test scotes for 12 randomly selected high school seniors are shown on the right Complete parts (a) through (c) below Assume the population is normally distributed 1429 694 727 620 1220 722 747 1441 983 839 547 943 (a) Find the sample mean x=Pound to one decimal place as needed (b) Find the sample standard deviation - (Round to one decimal place as needed.) (c) Construct a 00% confidence interval for the population mean A0% condence interval for the population mean is (Round to one decimal place as needed ts ources