My used car lot has about 36 cars, Sometimes, washing them down gives me serious scars. The average car on my lot sells for a 7245 dollar With a standard deviation of 2500, it makes me holler! The 95% confidence interval is required to estimate the population mean Whether we fall in the normal range or not, remains to be seen! What distribution makes most sense to use and why, My manager wants me to explain everything to him, oh my! Assume that the underlying distribution is normal, and answer the following: a. Which distribution should you use for this problem? (Answer "t-distribution" or "Z-distribution"): b. The random variable X refers to the number of miles a used car has on it. Write "true" or "false". c. The 95% confidence interval for the population mean cost of a used car goes from $ to $

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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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### Chapter 8 Question 3.

Selling used cars is often a pain,  
A lot of selling to do for very little gain  
My used car lot has about 36 cars,  
Sometimes, washing them down gives me serious scars.  
The average car on my lot sells for a 7245 dollar  
With a standard deviation of 2500, it makes me holler!  
The 95% confidence interval is required to estimate the population mean  
Whether we fall in the normal range or not, remains to be seen!  
What distribution makes most sense to use and why,  
My manager wants me to explain everything to him, oh my!

Assume that the underlying distribution is normal, and answer the following:

**a. Which distribution should you use for this problem? (Answer "t-distribution" or "Z-distribution"):**  
[Input box]

**b. The random variable X refers to the number of miles a used car has on it. Write "true" or "false".**  
[Input box]

**c. The 95% confidence interval for the population mean cost of a used car goes from $ _______ to $ _______ .**  
[Input boxes]
Transcribed Image Text:### Chapter 8 Question 3. Selling used cars is often a pain, A lot of selling to do for very little gain My used car lot has about 36 cars, Sometimes, washing them down gives me serious scars. The average car on my lot sells for a 7245 dollar With a standard deviation of 2500, it makes me holler! The 95% confidence interval is required to estimate the population mean Whether we fall in the normal range or not, remains to be seen! What distribution makes most sense to use and why, My manager wants me to explain everything to him, oh my! Assume that the underlying distribution is normal, and answer the following: **a. Which distribution should you use for this problem? (Answer "t-distribution" or "Z-distribution"):** [Input box] **b. The random variable X refers to the number of miles a used car has on it. Write "true" or "false".** [Input box] **c. The 95% confidence interval for the population mean cost of a used car goes from $ _______ to $ _______ .** [Input boxes]
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