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Assume that a simple random sample has been selected from a normally distributed population. State the final conclusion. Round the test statistic to two decimal
Assume that a simple random sample has been selected from a normally distributed population. State the final conclusion. Round the test statistic to two decimal places. Test the claim that the mean lifetime of a particular car engine is greater than 220,000 miles. Sample data are summarized as n equals 23 comma x overbar equals 226 comma 450 miles comma and s equals 11 comma 500 miles. Use a significance level of alpha equals 0.01 . The hypotheses are Upper H 0: muequals220,000 and Upper H Subscript a: mugreater than220,000. Question content area bottom Part 1 A. tequalsminus2.69, reject Upper H 0 B. tequalsminus2.69, do not reject Upper H 0 C. tequals2.69, reject Upper H 0 D. zequalsminus2.69, reject Upper H 0 E. tequals12.90, reject Upper H 0
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