score: 0.33 of 1 pt 5 of 9 (5 complete) \"7.2.28-T Use technology to help you te

Question

score: 0.33 of 1 pt 5 of 9 (5 complete) "7.2.28-T Use technology to help you test the claim about the population mean, at the given level of significance. using the give Claim: > 1210, :0 08: -204.13 Sample statistics:123537, n = 250 identify the null and alternative hypotheses. Choose the correct answer below A. Ho: H1210 B. Ho : > 1 Ha > 1210 C. Ho:H2 1210 Ha : 12 H, us 121 Hap > 1235 37 Calculate the standardized test statistic The standardized test statistic is 1.97 Round to two decimal places as needed) Determine the P-value P= (Round to three decimal places as needed ) Enter your answer in the answer box and then click Check Answer 1 part re Clear All OType here to search

Explanation / Answer

Solution:-

The standardized test statistic is 1.97

=> z = (1235.37-1210)/[204.13/sqrt(250)] = 1.9650 = 1.97

p = 0.0245

=> df = n - 1 = 250 -1 = 249
it is a 1-tailed test hence
p = 0.0249 = 0.025(rounded)

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