You have a business and you want to improve sales. Analysis of your previous sal

Question

You have a business and you want to improve sales. Analysis of your previous sales data indicates that the average sale was $200 per transaction. You decide to train your staff and select a sample of 10 sales representatives to conduct a training. After the training your data indicates an average sale of $230 per transaction with a SD = 10. Did the training work? (alpha = 0.5) Which test should you use to answer this question? Question 7 options:

Z for a single score

0Z for a sample mean

Single-sample t

None of the above

Explanation / Answer

Answer:- In the given question Sample size greater than 30.

Sample is independently drawn.

Hence ,we use " Z for a sample mean" is correct option.

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