Suppose the average number of hours full-time college students work per week is 25 with a...
Suppose the average number of hours full-time college students work per week is 25 with a standard deviation of 6 hours.. Random samples of 40 full time students are drawn. Find the mean and the standard deviation of the sample mean
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Suppose the average number of hours full-time college students
work per week is 25 with a...
Full-time college students report spending a mean of 28 hours per week on academic activities, both...
Full-time college students report spending a mean of 28 hours per week on academic activities, both inside and outside the classroom. Assume the standard deviation of time spent on academic activities is 4 hours. Complete parts (a) through (d) below. a. If you select a random sample of 25 full-time college students, what is the probability that the mean time spent on academic activities is at least 27 hours per week?
Some college graduates employed full-time work more than 40 hours per week, and some work fewer...
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, , is different from 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 36 hours and that the standard deviation is 3 hours. Based on this...
Some college graduates employed full-time work more than 40 hours per week, and some work fewer...
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, A. is greater than 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 44 hours and that the standard deviation is 4 hours Based on this...
1. To determine the average number of hours spent studying by college students per week, a...
1. To determine the average number of hours spent studying by college students per week, a sample of 39 students was randomly selected, and found to spend an average of 17.1 hours per week, with a standard deviation of 4.3 hours. Find the 90% confidence interval for the mean number of hours spent studying per week by all college students. What is the upper and lower bound? 2. If I asked a random student how many hours they study per...
Assume that the number of hours college students spend working per week is normally distributed with...
Assume that the number of hours college students spend working
per week is normally distributed with a mean of 18 hours and
standard deviation of 4 hours
2. Assume that the number of hours that college students spend working per week is normally distributed with a mean of 18 hours and a standard deviation of 4 hours. a. Mark the 7 hash marks on the x-axis with the appropriate labels in hours worked per week. Recall that the center hash...
a-c please 3. In order to determine how many hours per week freshmen college students watch...
a-c please
3. In order to determine how many hours per week freshmen college students watch television, a random sample of 25 students was selected. It was determined that the students in the sample spent an average of 19.5 hours with a sample standard deviation of 3.9 hours watching TV per week. Please answer the following questions: (a) Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. (b)...
The mean number of hours of part-time work per week for a sample of 526 college...
The mean number of hours of part-time work per week for a sample of 526 college students is 28. if the margin of error for the population mean with a 99 % confidence interval is 2.2, construct a 99 % confidence interval for the mean number of hours of part-time work per week for all college students.
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to...
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her university to see if there is evidence that students study an average of more than 20 hours each week. A random sample of 30 students were asked to keep a diary of their activities over a period of several weeks. It was found that the average number of hours that the 30 students studied each week was 21.6 hours....
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to...
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her university to see if there is evidence that students study an average of more than 20 hours each week. A random sample of 34 students were asked to keep a diary of their activities over a period of several weeks. It was found that the average number of hours that the 34 students studied each week was 21.5 hours....
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to...
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her university to see if there is evidence that students study an average of more than 20 hours each week. A random sample of 35 students were asked to keep a diary of their activities over a period of several weeks. It was found that the average number of hours that the 35 students studied each week was 21.1 hours....
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, , is different from 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 36 hours and that the standard deviation is 3 hours. Based on this...
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, A. is greater than 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 44 hours and that the standard deviation is 4 hours Based on this...
Assume that the number of hours college students spend working
per week is normally distributed with a mean of 18 hours and
standard deviation of 4 hours
2. Assume that the number of hours that college students spend working per week is normally distributed with a mean of 18 hours and a standard deviation of 4 hours. a. Mark the 7 hash marks on the x-axis with the appropriate labels in hours worked per week. Recall that the center hash...
a-c please
3. In order to determine how many hours per week freshmen college students watch television, a random sample of 25 students was selected. It was determined that the students in the sample spent an average of 19.5 hours with a sample standard deviation of 3.9 hours watching TV per week. Please answer the following questions: (a) Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. (b)...
The mean number of hours of part-time work per week for a sample of 526 college students is 28. if the margin of error for the population mean with a 99 % confidence interval is 2.2, construct a 99 % confidence interval for the mean number of hours of part-time work per week for all college students.
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