answer all blank boxes and questions. took 4 pictures cause it wouldn\'t fit in
ID: 3362254 • Letter: A
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answer all blank boxes and questions. took 4
pictures cause it wouldn't fit in 1.
The t Test for Two Related Samples Graded Assignment sgnment Due Saturday 11 18.17 at 08 45 PM Score: 5 19-Chapter 11, Problem 18 Aa Aa A repeated-measures study with a sample of n 16 participants produces a mean difference of Mo- 4 witha standard deviation of s-8. Use a two-tailed hypothesis test with -.05 to determine whether it is likely that this sample carne form a population with ,-0. (Use three decimal places for the critical values, two fr te estimated standard error and the t statistic.) Degrees of freedom 21 3.0 -2.0 0.0 2.0 Estimated Standard Error t Statistic Critical Values O Reject the null hypothesis; there is a significant difference O Reject the null hypothesis; there is no signiticant difference O Fail to reject the nul hypothesis; there is no significant difference O Fail to repeat the null hypothesis, there is significant difference Now assume that the sample M mean difference is D -0, and once again visualize the samole distribution. Use aExplanation / Answer
Estimated standard error = S/sqrt (n) = 8/sqrt(16) = 8/4 = 2
t-statistic = M0/SE
= 4/2 = 2
DF = 16 - 1 = 15
With 15 degrees of freedom and alpha = 0.05 the critical values are +/- 2.131
As the test statistic value lies between the critical values (-2.131 < 2 < 2.131), so the null hypothesis is not rejected.
Option-C is the correct answer.
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