Of 47 bank customers depositing a check, 16 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4 decimal pleces.) The 90% confidence interval is from to

MATLAB: An Introduction with Applications
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**Homework: Chapter 8 (Sections 8.4 through 8.6)**

**Homework Question 10**

Of 47 bank customers depositing a check, 16 received some cash back.

**(a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4 decimal places.)**

The 90% confidence interval is from [______] to [______].

**(b) May normality of p be assumed?**

- [ ] Yes
- [ ] No
Transcribed Image Text:**Homework: Chapter 8 (Sections 8.4 through 8.6)** **Homework Question 10** Of 47 bank customers depositing a check, 16 received some cash back. **(a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4 decimal places.)** The 90% confidence interval is from [______] to [______]. **(b) May normality of p be assumed?** - [ ] Yes - [ ] No
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