Researchers S. Reilly et al. studied the indicators of stuttering onset and the potential effects that stuttering
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At the 10% significance level, do the data provide sufficient evidence to conclude that, in this age group, there is more variation in CSBS scores for stutterers than for nonstutterers?
For each exercise, use either the critical-value approach or the P-value approach to perform the required hypothesis test.
Transcribed Image Text:
Stutterers Nonstutterers 120 109 77 119 72 101 93 95 116 84 122 108 127 97 107 108 105 126 111 99 92 81 123 107 75
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1 Stutterers 2 Nonstutterers Step 1 H 0 1 2 H a 1 2 Step 2 010 Step 3 F 173262157452 1211 Step 4 ...View the full answer
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