Dr. Christal-Joy Turner's Step-by-Step guide for Navigating Word Problems To Estimate Sample Size

Question: How many parents do you have to sample?
You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o-= 64.7 dollars. You would like to be 98% confident that your estimate is within 2 dollar(s) of average spending on the birthday parties. How many parents do you have to sample?n=

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Answered By:

Christal-Joy T.
PhD in Educational Psychology w/ 4 years teaching experience in Stats

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Written Explanation:

The solution has been worked out in the problem. Check it out and let me know if you have any additional questions. Take care!Dr. Christal-Joy Turner

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