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Instructions to the questions: Assume that thetwo samples are independent simple

ID: 2916491 • Letter: I

Question

   Instructions to the questions: Assume that thetwo samples are independent simple random samples selected fromnormally distributed populations. Do not assume that the populationstandard deviation are equal. Question to be solved: Blanking out on tests                               Manystudents have had the unpleasant experience of panicking on a testbecause the first question was exceptionally difficult.Thearrangements of test items was studied for its effect on anxiety.The following scores are measures of "debilitating test anxiety",which most of us call panic or blanking out. Is there sufficientevidence to support the claim that the two populations of scoreshave the same mean? Is there sufficient evidence to support theclaim that the arrangement of the test items has an effect on thescore? Please use this table to solve the problem: Question Arranged from easy todifficult                                    Questionarranged from difficult to easy
24.64    39.29       16.32     32.83     28.02                            33.62     34.02   26.63      30.26 33.31     20.60      21.13     26.69     28.90                             35.91    26.68    29.49     35.32 26.43     24.23      7.10       32.86     21.06                            27.24    32.34    29.34      33.53 28.89     28.71       31.73     30.02     21.96                             27.62     42.91    30.20      32.54 25.49    38.81       27.85     30.29      30.72 Question is based on Inferences from two samples.Helpplease    Instructions to the questions: Assume that thetwo samples are independent simple random samples selected fromnormally distributed populations. Do not assume that the populationstandard deviation are equal. Question to be solved: Blanking out on tests                               Manystudents have had the unpleasant experience of panicking on a testbecause the first question was exceptionally difficult.Thearrangements of test items was studied for its effect on anxiety.The following scores are measures of "debilitating test anxiety",which most of us call panic or blanking out. Is there sufficientevidence to support the claim that the two populations of scoreshave the same mean? Is there sufficient evidence to support theclaim that the arrangement of the test items has an effect on thescore? Please use this table to solve the problem: Question Arranged from easy todifficult                                    Questionarranged from difficult to easy
24.64    39.29       16.32     32.83     28.02                            33.62     34.02   26.63      30.26 33.31     20.60      21.13     26.69     28.90                             35.91    26.68    29.49     35.32 26.43     24.23      7.10       32.86     21.06                            27.24    32.34    29.34      33.53 28.89     28.71       31.73     30.02     21.96                             27.62     42.91    30.20      32.54 25.49    38.81       27.85     30.29      30.72 Question is based on Inferences from two samples.Helpplease

Explanation / Answer

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