A clinic offers a weight-loss program. The table below gives the amounts of weight loss, in pounds, for a random sample of 20 of its clients at the conclusion of the program. Assumethat the data are normally distributed. Complete parts (a) and (b).1818159171019 20 817 24811 2112 17The 98% confidence interval is from a lower limit of(Round to two decimal places as needed.)2513 3012 Dto an upper limit of....b. Without doing the calculations, explain whether a 90% confidence interval for the population mean would be wider than, narrower than, or the same as that found in part (a). Choosethe correct answer below.OA. It will be narrower because the reliability factor will be smaller for a 90% confidence interval than for a 98% confidence interval.OB. It will be wider because the reliability factor will be larger for a 90% confidence interval than for a 98% confidence interval.OC. It will be wider because the reliability factor will be smaller for a 90% confidence interval than for a 98% confidence interval.OD. It will be the same because the confidence interval is being calculated for the same data set.

Sample size n =20 x x2 18 324 18 324 15 225 9 81 17 289 19 361 8 64 20 400 11…

Answered: program. The table below gives the…

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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Show all calculations for question 1 part a B c and d.
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Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
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Construct a 90% confidence interval for u, - , with the sample statistics for mean calorie content of two bakeries specialty pies and confidence interval construction formula below Assume the populations are approximately normal with equal variances Bakery A Bakery B X1 = 1823 cal X, = 1629 cal S1 = 155 cal S2 = 190 cal n1 = 10 n2 = 12 Confidence interval when variances are equal n n. (n. - 1) s (n2 - 1) s where G and d.f = n, +n2 - 2 nn, - 2 Enter the endpoints of the interval (Round to the nearest integer as needed.)
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The following data represent the length of time, in days, to recovery for patients randomly treated with one of two medications to ciear up severe bladder infections. Find a 95% confidence interval for the difference u,-H, between in the mean recovery times for the two medications, assuming normal populations with equal variances. Medication 1 x, 13 s = 14 s =1.6 n, = 14 Medication 2 n211 X2= 16 Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table ofcritical values of the t-distribution The confidence interval is

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