The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. 14221220981695720834Assume the population is normally distributed.7277415466201447945(a) Find the sample mean.X=(Round to one decimal place as needed.)(b) Find the sample standard deviation.(Round to one decimal place as needed.)(c) Construct a 99% confidence interval for the population mean µ.A 99% confidence interval for the population mean is ( ).(Round to one decimal place as needed.) The annual earnings (in dollars) of 35 randomly selected microbiologists are shown in the data table. Use the data to (a) find the sample mean, (b) find the sample standard deviation, and (c) construct a98% confidence interval for the population mean.100,630 80,54577,588 67,58051,52068,054 94,568 65,858 D78,70674,45744,81186,30860,74158,228 55,041 78,42947,53698,55080,98993,35963,33575,060 50,988 61,08892,07584,27780,472 64,38374,25956,802 47,149 89,54175,95561,37683,024.....(a) Find the sample mean.x = (Type an integer or decimal rounded to two decimal places as needed.)(b) Find the sample standard deviation.S=(Type an integer or decimal rounded to two decimal places as needed.)(c) Construct a 98% confidence interval for the population mean.(Round to the nearest integer as needed.)

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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