Null hypothesis can be rejected
True/False
In problem 18 if x-bar = 505 and s = 20, the null hypothesis can be rejected with the p = 0.0062
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When the height gain of each step was 0.20 m, and the man's mass was 57.0 kg, determine his average power output throughout the climb? Give your answer in both watts and horse-power.
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When performing hypothesis tests or calculating confidence intervals based upon large samples, it is necessary to suppose that the data in the parent population(s) are distributed normally.
At 5% significance the fail to reject the test statistic for Ho: (u1-u2) = 0, Ha: (u1-u2) < 0, n1 = 8, n2 = 8, x1-bar = 53.6, x2-bar = 61.5, s1 = 12.5 and s2 = 10.6 is t = -1.36.
Estimate the value of the confidence coefficient z (a/2) for the condition below:
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When a 120 lb. soil is situated in the wheel-barrow with its center of gravity 1.5 ft. from the axle, what force is needed to mount the legs of the wheel-barrow?
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