A Sample Has a Mean of M = 39

question 39

Multiple Choice

A sample has a mean of M = 39.5 and a standard deviation of s = 4.3,and produces a t statistic of t = 2.14.For a two-tailed hypothesis test with α = .05,what is the correct statistical decision for this sample?

• A)The researcher can reject the null hypothesis with α = .05 but not with α = .01.
• B)The researcher can reject the null hypothesis with either α = .05 or α = .01.
• C)The researcher must fail to reject the null hypothesis with either α = .05 or α = .01.
• D)It is impossible to make a decision about H0 without more information.

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Definitions:

Takt Time

The rate at which a completed product needs to be finished in order to meet customer demand.

Operation Time

The total amount of time that is required to complete a specific operation in the production process.

Work Cell

A configuration of resources in a manufacturing environment arranged for the efficient production of a product, focusing on minimizing movement and wait times, often as part of a lean manufacturing strategy.

Staff Demand

The projected need for employees in an organization to meet its goals and workload.