Assume that a simple random sample has been selected and test the given claim. U

Question

Assume that a simple random sample has been selected and test the given claim. Use the P-value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. The ages of actresses when they won an acting award is summarized by the statistics n = 79, x = 35.9 years, and s = 11.8 years. Use a 0.01 significance level to test the claim that the mean age of actresses when they win an acting award is 34 years What are the hypotheses? H_0:mu plusminus 34 years H_1: mu = 34 years H_0: mu = 34 years H_1

Explanation / Answer

hypothesis: option C is correct

here std error =std deviation/(n)1/2 =1.3276

hence test stat t=(X-mean)/std error =(35.9-34)/4.039=1.4311

p value =0.1564

option A : fail to reject Ho; there is insufficient......

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