Writing Appropriate Null and Alternative Hypotheses, Basic Statistics

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For this assignment, you will practice creating null and alternative hypotheses of difference based on the presented scenarios. To complete this assignment, consider the three scenarios described below (A, B, and C), and perform the following for each scenario:
•Create a measurable null and alternative hypothesis.
•Identify the number of samples, whether they are independent, and what type of data will be collected (that is, nominal, ordinal, interval, or ratio).
•State which parametric test would be most suitable to use.

Scenario A

A company sent 83 salespersons to a sales training course. The company wants to know if their sales performance has improved or is unchanged based on the training course.

Scenario B

A company introduces a new product and wants to find out if males or females will be more likely to purchase it. The company will survey 100 males and 100 females.

Scenario C

A company manufactures laptop computers in two different plants and wants to know if the battery life is the same for laptops from both facilities. There are samples of 55 laptops from each plant.

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