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insomniacs by an average of 2 7 hours with a variance of 0 30 A...

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insomniacs by an average of 2 7 hours with a variance of 0 30 A governr group conducts an independent study on the new pill to see if the varianc of increase in sleeping time is different from the advertised variance The government group tests 23 insomniacs chosen at random with the nev The insomniacs in the sample report a mean daily sleeping increase of hours with a variance of 0 58 Is there enough evidence at the 0 05 leve significance to reject the claim made in the advertisement Assume th the increases in sleeping times provided by the new pill are approxima normally distributed Perform a two tailed test Then complete the parts below Carry your intermediate computations to three or more decimal places necessary consult a list of formulas a State the null hypothesis Ho and the alternative hypothesis H HO H b Determine the type of test statistic to use Choose one c Find the value of the test statistic Round to three or more decimal places d Find the two critical values Round to three or more decimal places and e Can we reject the claim that the variance of increase in sleeping time using the new pill is as advertised OYes No H x X 0 a X S 0 0 OSO 020 P 0 0 00 0

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