subject
Mathematics, 03.06.2020 13:05 meje1301

A study conducted by Harvard Business School recorded the amount of time CEOs devoted to various activities during the workweek. Meetings were the single largest activity averaging 18 hours per week. Assume that the standard deviation for the time spent in meetings is 5.2 hours. To confirm these results, a random sample of 35 CEOs was selected This sample averaged 16.8 hours per week in meetings. Which of the following statements is correct? A) The interval that contains 95% of the sample means is 16.3 and 19.7 hours. Because the sample mean is between these two values, we have support for the results of the CEO study by the Harvard Business School. B) The interval that contains 95% of the sample means is 17.1 and 18.9 hours. Because the sample mean is not between these two values, we do not have support for the results of the CEO study by the Harvard Business School C) The interval that contains 95% of the sample means is 15.7 and 20.3 hours. Because the sample mean is between these two values, we have support for the results of the CEO study by the Harvard Business School D) The interval that contains 95% of the sample means is 15.7 and 20.3 hours. Because the sample mean is between these two values, we do not have support for the results of the CEO study by the Harvard Business School

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function
Answers: 3
question
Mathematics, 21.06.2019 15:00
Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides
Answers: 1
question
Mathematics, 21.06.2019 18:00
The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.
Answers: 2
question
Mathematics, 21.06.2019 20:00
The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest
Answers: 2
You know the right answer?
A study conducted by Harvard Business School recorded the amount of time CEOs devoted to various act...
Questions
question
Mathematics, 10.03.2021 18:10
question
Mathematics, 10.03.2021 18:10
question
Mathematics, 10.03.2021 18:10
question
Mathematics, 10.03.2021 18:10
question
Mathematics, 10.03.2021 18:10
question
English, 10.03.2021 18:10
Questions on the website: 13722367