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Author Question: A personnel manager is conducting a study of sales supervisory salaries in this industry. A survey ... (Read 117 times)

fbq8i

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on: Jun 24, 2018
A personnel manager is conducting a study of sales supervisory salaries in this industry. A survey for the salaries of 36 sales supervisors found a mean of 48.41 thousand and a standard deviation of 18.3 thousand. Determine a 98-percent confidence interval (in thousands of dollars) for the mean of all sales supervisory salaries in this industry. ___________________ _ to ___________________ _
 Fill in the blank(s) with correct word

Question 2

From a sample of 400 people who were asked if they were in favor of a proposition to ban smoking in restaurants, 320 responded yes. Develop a 98 confidence interval using this sample.


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leahm14

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Reply #1 on: Jun 24, 2018
Answer to Question 1

40.97; 55.84

Answer to Question 2

0.7534, 0.8466


fbq8i

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Reply 2 on: Jun 24, 2018
Wow, this really help

xiaomengxian

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Reply 3 on: Yesterday
:D TYSM

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