Question

The null and alternate hypotheses are: A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the 10 significance level, is tiere a difference in the population means? Note: Use the five-step hypothesis testing procedure for the following exercises. (a)This is a two (b)The decision rule is to reject Hoif t (Negative values . (Round your answer to 3 decimal places.) https://newconnect.mheducation.com/flow/connect.html ignment 11 6 Saved Suppose a new formulation of the drug that is claimed to be more effective. To evaluate the new drug, a sample of 250 current users is asked to try it. After a one-month trial, 230 indicated the new drug was more effective in relieving a headache. At the same time, a sample of 380 current Ibuprofen users is given the current drug but told it is the new formulation. From this group, 338 said it was an improvement a manufactúrer of Ibuprofen, a common headache remedy, recently developed 8.33 points (1) State the decision rule for 10 significance level: Ho πη S Ter Hr πη > πc (Round your answer to 2 decimal places.) 2010%) Reject HO itz > (2)Compute the value of the test statistic. (Do not round the intermediate value. Round your answer to 2 decimal places.) Value of the test statistic (3)Can we conclude that the new drug is more effective? Use the 10 significance level. rCick to selectHo We[Cick to seloch conclude that the new drug is more effective.

Answer 1

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