TH 012 74362 > Assignments > Test #4(chp. 9-chp, 10) Test #4(chp. 9-chp, 10) Int

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TH 012 74362 > Assignments > Test #4(chp. 9-chp, 10) Test #4(chp. 9-chp, 10) Intro, to Probability and Statistics (#74362) Test: Test #4(chp. 9-chp. 10) Submit Test This Question: 1 pt 11 of 18 This Test: 18 pts possible A study was conducted to determine whether magnets were effective in treating pain The that both samples are independent simple random samples from populations having normal distributions. Use a 0.05 significance level to test the claim that those given a sham treatment have pain reductions that vary more than the pain reductions for hose treated with magnets. 46 0.98 What are the null and altemative hypotheses? Identify the test statistic. Fe?(Round to two decimal places as needed.) Use technology to identify the P-value The P-value is(Round to three decimal places as needed) What is the conclusion for this hypothesis test? OA. Reject Ho. There is suficient evidence to support the clain that those given a sham treatment have pain Click to select your answerls) Save for Later Previous Next

Explanation / Answer

for hypothesis: option C is correct

test statistc F=(s1/s2)2 =(1.55/0.98)2 =2.50

p value =0.026

conclusion: option A is correct

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