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 18:00, tmrsavage02p7cj16
Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?
Answers: 1
Mathematics, 21.06.2019 21:00, makayla10119
When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years
Answers: 1
Mathematics, 22.06.2019 02:20, IkweWolf1824
Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.
Answers: 1
A researcher is concerned about the impact of students working while they are enrolled in classes, a...
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