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8:10 PM warnap.org iPad * 66% Show 1:31:23 remaining. Questions You wish to test the following claim (Ho) at a significance level of 0.05. For the context of this problem, -= PostTest-PreTest one data set represents a pre-test and the other data set represents a post-test. Each row represents the pre and post test scores for an individual. Q1 [4/4 Q3 12.4/4 Q4[4/4 Q6 [3.2/4] Q 7 (0,4) Q 8 (0,4) You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: 71.8 11.3 104.2 49.1 2.5 23.1 -21.1 35.1 73.3 7.8 123 72.1 42 40.5 32.4 41.5 48 45.7 45.4 45 Q 10 (0,4) Q 11 [4/4] Q 12 [3/4) Q 13 [3/4) Q14 (4/4) Q 15 [4/4) Q 16 (0/4) Q17 14/4) Q 18 (0,4) Q 19 [4/4] Q 20 (0,4) 50 45 57.4 58.2 30.7 70.4 60.4 59.9 40.6 39.8 29.8 Q 22 (0,4) Q 23 (0,4) Q 24 (0,4) Grade: 43.6/100 42.6 57.4 61.4 28.8 52 47.7 116.2 25.7 44.3 104.6 What is the test statistic for this sample? test statistic = € (Report answer accurate to 4 decimal places.) What is the p-value for this sample? p-value (Report answer accurate to 4 decimal places.) The p-value is... less than (or equal to) greater than

Explanation / Answer

mean(D)=-7.29

Sd^2=1712.88

t=-0.826285

pvalue=0.417932

a p-value is less than alpha.

reject the null hypothesis.

OPTION B: There is not sufficient evidence to warrant rejection of the claim that the mean difference of post-test from pre-test is not equal to 0.

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