Number 6 VA Homework 3A Home I Chegg.com x C Secure https/www.webassign net web
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Number 6
VA Homework 3A Home I Chegg.com x C Secure https/www.webassign net web Student Assignment-Responses /last?dep 15441862 was given to each subject at the beginning of the period. During the other period, subjects were instructed to retrain trom any use ot alcohol. All subjects reported that they complied with these instructions except for three subjects, who said that they drank no more than three to four 12-ounce bottles of beer during the no-alcohol period. Discuss how these factors could influence the interpretation of the results. This answer has not been graded yet. eBook 6. -13 points MIntroStat8 7.E 506XP My Notes Ask Your Teacher Assume X 98, X2 120, s. 11, s 14, n. 50, and n 50. Find a 95% confidence interval for the difference in the corresponding values of pa. (Round your answers to three decimal places.) Does this interval include more or fewer values than a 99 confidence interval? Explain your answer. This interval includes fewer values because a smaller confidence level means that we need a smaller margin of error. This interval includes fewer values because a smaller confidence level means that we need a larger margin of error. This interval includes more values because a smaller confidence level means that we need a smaller margin of error. This interval includes more values because a smaller confidence level means that we need a larger margin of error. eBook Submit Assignment Save Assignment Progress Home My Assignments Extension Requesf 400 1007.20 Advanced Instructional Systems, Inc AInghtsrnserved 7:59 AM 3/31/2017Explanation / Answer
95% CI for difference: (-27.00, -17.00)
Two-Sample T-Test and CI
Sample N Mean StDev SE Mean
1 50 98.0 11.0 1.6
2 50 120.0 14.0 2.0
Difference = (1) - (2)
Estimate for difference: -22.00
95% CI for difference: (-27.00, -17.00)
T-Test of difference = 0 (vs ): T-Value = -8.74 P-Value = 0.000 DF = 98
Both use Pooled StDev = 12.5897
99% CI for difference: (-28.61, -15.39)
95% CI includes fewer values because a smaller confidence interval means that we need a larger margin of error.
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