Hi can you please help me find these answers its survey of stat?

The monthly incomes for 12 randomly selected people, each with a bachelor's degree in economics, 4450.51 4596.83 4366.47 are shown on the right. Complete parts (a) through (0) below. 4455.54 4151.47 3727.45 Assume the population is normally distributed. 4283.19 4527.82 4407.31 3946.15 4023.61 4221.33 (a) Find the sample mean. x = :| (Round to one decimal place as needed.) (b) Find the sample standard deviation. s = :| (Round to one decimal place as needed.) (c) Construct a 90% condence interval for the population mean p. A 90% condence interval for the population mean is (D,D). (Round to one decimal place as needed.) Construct the confidence interval for the population mean H. C = 0 . 98 , X = 4. 6 , 0 = 0. 8 , and n = 56 A 98% confidence interval for H is (| | | D. ( Round to two decimal places as needed . )The average math SAT score is 519 with a standard deviation of 1 14 . A particular high school claims that it's students have unusually high math SAT scores . A random sample of 60 students from this school was selected , and the mean math SAT score was 556 . Is the high school justified in its claim ? Explain . \\}| , because the z - score (\\\\) is ~| since it *\\ within the range of a usual event , namely within ~\\ of the mean of the sample means . ( Round to two decimal places as needed . )Find the indicated z- score shown in the graph to the right . Click to view page 1 of the table . Click to view page 2 of the table . Area = 0. 0721 Z = ? O The z- score is | |