a Bookmarks Menu Unserted Bookmart MBA50OB Quantitative Analysis &Decision; Maki

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a Bookmarks Menu Unserted Bookmart MBA50OB Quantitative Analysis &Decision; Making sU01 Homework: Week 3 Homework Score: 0 of 3 pts Austin Mattioll &1 3/20/18 2:54 PM Save Hw Score: 1596, 4 5 of 30 pts 4 6 of 10 (5 complete) Y lesion Hep 7.3.27 A clnic ofers a weight loss program The table below goves the amounts of weight less, in pounds, for a candom sample of 20 of ts clents at the concusion of the program Assume that the data are normally distibuted Complete parts (a) and (b 19 16 19 9 119 15 23 11 17 12 24 20 27 15 10 1312 a Fnd a99% coridence nterval for the populabon mean The 99% confidence interal is tom . lower irnd of[-toan upper-d» Round to two decimal places as needed.) Enter your answer in the edit selts and then cIkk Check Answer Cear A HP L1750 WYs

Explanation / Answer

Rcode to

99% confidence interval for mean is

weightloss1 <- c(19,16,5,18,20,27,15,10,13,12,19,9,11,9,15,23,11,17,12,24)
t.test(weightloss1,conf.level=0.99)

output:

One Sample t-test

data: weightloss1
t = 12.039, df = 19, p-value = 2.453e-10
alternative hypothesis: true mean is not equal to 0
99 percent confidence interval:
11.62597 18.87403
sample estimates:
mean of x
15.25

99 percent confidence interval:
11.63 to 18.87

lower limit=11.63

upper limit=18.87

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