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Category: Homework
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Experience:  MIT Graduate (Math, Programming, Science, and Music)
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1. Find the sample mean and sample standard deviation of ...

Resolved Question:

1. Find the sample mean and sample standard deviation of the amount citizens spend per year.

2. When finding a confidence interval for the true mean spent of ALL citizens, should we use a z-score or a t-score? Why?

3. Find the z/t-values (as appropriate) for a 95% confidence interval and a 92% confidence interval.

4. Find a 95% and a 92% confidence interval for the true mean amount that citizens spend per year.

5. What do you think the lowest possible mean amount spent per year is? Why?

6. Do you think Bob has a good customer base for his new business? Explain
Submitted: 8 years ago.
Category: Homework
Expert:  Scott replied 8 years ago.

Hi there,

Please post the beginning of the question which tells us the data about Bob's candy store.

Thanks,

Scott

Customer: replied 8 years ago.
 Dollars Spent 75 74 80 68 79 85 77 82 79 67 90 72 76 75 69 85 78 79 82 66 75 85 90 76 85 67 89 82 69 79 82 80 84 79 78 81 77 84 80 76

Expert:  Scott replied 8 years ago.

You need to spend \$3 to view this post. Add Funds to your account and buy credits.
Category: Homework
Satisfied Customers: 17710
Experience: MIT Graduate (Math, Programming, Science, and Music)
Customer: replied 8 years ago.

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