The Next Questions Are Based on the Following Information

question 57

Multiple Choice

The Next Questions Are Based On The Following Information:
The sales representative for a manufacturer of a new product claims that the product will increase output per machine by at least 29 units per hour.A line manager installs the product on 15 of the machines,and finds that the average increase was only 26 with a standard deviation of 6.2.
-Which of the following statements is most accurate?

• A)reject the null hypothesis at α = 0.10
• B)fail to reject the null hypothesis at α ≤ 0.10
• C)reject the null hypothesis at α = 0.05,but not 0.10
• D)reject the null hypothesis at α = 0.01,but not 0.05

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Definitions:

Spread Or Variability

The extent to which a dataset differs from its mean, indicating how much the data points are spread out or clustered together.

Statistical Inference

The process of using data analysis to deduce properties of an underlying probability distribution.

Line Chart

A type of chart which displays information as a series of data points called 'markers' connected by straight line segments.

Day Of The Week

Refers to any of the seven recurring days that constitute a week, often considered in analyses that investigate weekly patterns or cycles.