Question

The following is a random sample of the annual salaries of high school counselors in the United States. Assuming that the distribution of salaries is approximately normal, construct a 95% confidence interval for the mean salary of high school counselors across the United States. Round to the nearest dollar.
$42,670,$64,150,$41,200,$44,030,$41,370,$35,010,$33,630

Answer 1

The answer is "Lower Endpoint = 33858  and Upper Endpoint = 52445", and the further solution can be is provided as follows:

• As a result, we need to calculate a $\bold{95\%}$ confidence interval for the mean.
• To use the TI 84 Plus calculator, follow these steps:
• Press STAT and then select EDIT from the drop-down menus.
• Enter the data in column L1 under EDIT

Please find picture 1 in the attached file.

• Select Tests from the STAT menu once again by pressing STAT again
• select TInterval under the TESTS heading
• Selected data can be found under TInterval
• Enter values in the Data section of the form.

Please find picture 2 in the attached file.

• Hit Enter when you've selected Calculate
• Please find picture 3 in the attached file.
• lower-endpoint = 33858
• upper-endpoint = 52445  

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Endpoint: brainly.com/question/13174158