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Statistical Analysis and Hypothesis Testing Solutions: Paired t-test, Two-Sample t-test, and Proportions: Solutions Assignment 6

Solved assignment covering paired and two-sample t-tests along with proportion analysis.

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Statistical Analysis and Hypothesis Testing Solutions: Paired t-test, Two-Sample t-test, and Proportions: Solutions Assignment 6 - Page 1 preview image

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Solutions-assignment6Using the Minitab the obtained output for the paired t-test is,Solution#1:The point estimate of the population mean difference is,1.05001.10700.0570d .Solution#2:The standard error of the sample mean differenceis,/0.0467dsnSolution#3:The 95%confidence interval for the population mean difference is (-0.163, 0. 049).The correct option is (C).Solution#4:The appropriatehypotheses are,0:,:aHH  The correct option is (B).Solution#5:Thevalue of the appropriate test statisticis,1.22t Solution#6:From the output, the P-value is 0.253, which is greater than 0.20.The appropriate option is (E).Solution#7:The P-value is greater than the significance level of 0.05. So, fail to reject the null hypothesis.Therefore, it can be concluded that there is significantevidence the population mean differencebetween the two patternsis equal to 0.The appropriate option is (A).Solution#8:The appropriate option is (B).Using the Minitab the obtained output for the two-sample t-test(equal variances) is,Solution#9:From the output the pooled standard deviation is,6.9741pooledsThe pooled sample variance is,226.974148.638pooledsSolution#10:The value of the standard error of thedifference between the sample means is2.1746.Solution#11:A 95%confidence interval for the difference in population means is19.74.39.The appropriate answer is (B).Solution#12:The appropriate hypotheses are,0:,:MFaMFHHThe correct option is (C).Solution#13:Thevalue of the appropriate test statisticis,9.06t

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