Mathematics, 23.06.2021 23:40 beesbutterflyqueen
A researcher is concerned about the impact of students working while they are enrolled in classes, and she likes to know if students work too much and therefore are spending less time on their classes than they should be. The researcher chooses a sample of 150 students and found that the sample mean is 7.10 hours and the sample standard deviation is 5. Construct a 90% confidence interval estimate of the mean hours a week students are working. a. What is the point estimate: b. Find the critical value: Round to 3 decimal places. c. What is the margin or error: Round the answer to three decimal places d. Construct the confidence interval: Express the answer as (x, x), round to one decimal place. e. State the final Conclusion.
Answers: 3
Mathematics, 21.06.2019 16:00
You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?
Answers: 1
Mathematics, 21.06.2019 19:00
Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9
Answers: 1
Mathematics, 21.06.2019 21:00
Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1
Answers: 3
A researcher is concerned about the impact of students working while they are enrolled in classes, a...
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