Question 6. need answer A well-designed and safe workplace can contribute greatl
ID: 3180485 • Letter: Q
Question
Question 6. need answer
A well-designed and safe workplace can contribute greatly to increasing productivity. It is especially important that workers not be asked to perform tasks, such as lifting, that exceed their capabilities. The following data on maximum weight of lift (MWOL, in kilograms) for a frequency of 4 lifts per minute were reported in a certain article:
Suppose that it is reasonable to regard the sample as a random sample from the population of healthy males, age 18-30. Do the data suggest that the population mean MWOL exceeds 25.5? Carry out a test of the relevant hypotheses using a .1 significance level.
Choice A: Reject H0
Choice B: Fail to reject H0
26.3 37.1 26.8 22.3 27.7Explanation / Answer
The statistifcal software output for this problem is:
One sample T hypothesis test:
: Mean of variable
H0 : = 25.5
HA : > 25.5
Hypothesis test results:
Since p - value is greater than 0.1,
We fail to reject Ho.
Choice B is correct.
Variable Sample Mean Std. Err. DF T-Stat P-value var4 28.04 2.4465486 4 1.0381972 0.1789Related Questions
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