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Workers in a large plant are expected to complete a particular task in 60 seconds or...

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Question

Basic Math

Workers in a large plant are expected to complete a particulartask in 60 seconds or less. The

production manager believes that the average worker issatisfying that expectation. To

examine the issue she watches eight workers perform the task andmeasures their times. The

times, which are assumed to be normally distributed, are 58, 53,63, 62, 57, 55, 53, and 55.

Does this data provide sufficient evidence at the 5%significance level to support the

production manager’s belief?

a. Test statistics:

t

= 2.223

b. P-value= 1.895

c. Do not reject Ho. These data provide insufficient evidence atthe 5% level of

significance to support the production manager’s belief.

d. Reject Ho. Yes, these data provide sufficient evidence at the5% level of significance to

support the production manager’s belief.

Answer & Explanation Solved by verified expert
3.8 Ratings (470 Votes)
Values X 5815316633662255705545316554Total456102Mean Standard deviation To Test H0 H1    See Answer
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