Question 929863
Ho: u = 755 (claim)
Ha: u ≠ 755
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Sample: n = 49
phat = 730, sd = 58
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test statistic = {{{blue (x - mu)/blue(sigma/sqrt(n))}}} =   -15/(58/sqrt(49) = -1.81
P(z < -1.81) = .035  
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At the 5% significance level:
.035 < .05, reject claim
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At the 1% significance level
.035 > .01, do not reject claim,