Question

Asked Nov 8, 2019

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Question 15 is what I am struggling with. Please help, thank you.

Step 1

The hypotheses are given below:

Step 2

*Decision rule:*

Step 3

Step by step procedure to obtain the test statistic using MINITAB software is given below:

- Choose
**Stat > Basic Statistics > 1-Sample**.*t* - In
**One or more samples, each in a column,**select**Charges**. - Check
**Options**, enter**Confidence level**as**95**. - In
**Perform Hypothesis test**, enter**07**Under**Hypothesized mean**. - Choose
**Mean > Hypothesiz...**

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