Question Help * 1-185 that the sample is from a population with a mean less than

Question

Question Help * 1-185 that the sample is from a population with a mean less than 5.4, which is a value often used for the upper limit of the r suggest about the sample group? measured. The sample mean is 5 32 and the sample standard deviation is 0 51. Use a 005 significance level and th n calculator display to test the claim 1-5 4 of normal values. What do the results1.040509738 p-0. 1519592388 x 5.32 Sx0.51 n- 44 Identify the test statistic (Round to three decimal places as needed ) Identify the Pvalue Round to four decimal places as needed ) Click to select your answer(s).

Explanation / Answer

Null hypothesis H0: Mean = 5.4
Alternative hypothesis H1: Mean < 5.4

Standard error = S / sqrt(n) = 0.51 / sqrt(44) = 0.07688539

Test statistic, t = (5.32 - 5.4) / 0.07688539 = -1.04051
P-value for t = - 1.04051 and df = 44-1 = 43 is 0.1519592

Test statistic = -1.041 (Rounded to three decimal places)
P-value = 0.1520 (Rounded to four decimal places)

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