Many students have had the unpleasant experience of panicking on a test because the first question was exceptionally difficult. The arrangement 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 sufficient evidence to support the claim that the two populations of scores have different means at the 5% significance level?

Many students have had the unpleasant experience of panicking on a test because the first question was exceptionally difficult. The arrangement 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 sufficient evidence to support the claim that the two populations of scores have different means at the 5% significance level?

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Description: Many students have had the unpleasant experience of panicking on a test because the first question wasexceptionally difficult. The arrangement of test items was studied for its effect on anxiety. The followingscores are measures of ”debilitating test

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

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Topic Video

Question

Many students have had the unpleasant experience of panicking on a test because the first question was
exceptionally difficult. The arrangement 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
sufficient evidence to support the claim that the two populations of scores have different means at the 5%
significance level?

	Easy to Difficult	Difficult to Easy
1	24.64	33.62
2	33.31	35.91
3	26.43	27.24
4	28.89	27.62
5	25.49	34.02
6	39.29	26.68
7	20.60	32.34
8	24.23	42.91
9	28.71	26.63
10	38.81	29.49
11	16.32	29.34
12	21.13	30.2
13	7.10	30.26
14	31.73	35.32
15	27.85	33.53
16	32.83	32.54
17	26.69
18	32.86
19	30.02
20	30.29
21	28.02
22	28.90
23	21.06
24	21.96
25	30.72

Mean	27.1152	31.7281
St Dev	6.8571	4.2602

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