Random sample of college students were asked how many hours they spent studying per day. The results summarized by sex are given in the following table.
Do these data provide evidence at the 0.01 level of significance to conclude that sex and amount of time spent studying are dependent? Begin by filling in the following tables.
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Random sample of college students were asked how many hours they spent studying per day
Question 21 Random sample of college students were asked how many hours they spent studying per...
Question 21
Random sample of college students were asked how many hours they spent studying per day. The results summarized by sex are given in the following table. Hours Spent Studying Less than 3 3 or more Total Males 36 64 100 Females 12 56 68 Total 48 120 168 Do these data provide evidence at the 0.01 level of significance to conclude that sex and amount of time spent studying are dependent? Begin by filling in the following tables....
15 pts D Question 7 Random sample of college students were asked how many hours they...
15 pts D Question 7 Random sample of college students were asked how many hours they spent studying per day. The results summarized by sex are given in the following table. Hours Spent Studying 3 or more Total Less than 3 Males 100 36 64 Females 12 56 68 Total 168 48 120 Do these data provide evidence at the 0.01 level of significance to conclude that sex and amount of time spent studying are dependent? Begin by filling in...
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...
A random sample of 46 college students reported the number of hours per day they typically...
A random sample of 46 college students reported the number of hours per day they typically spend on social media. Their sample mean is, M = 2.61, and their standard deviation is, s = 1.02. What is the point estimate of the mean time spent per day on social media for the population of college students?
A sample of 200 college freshmen was asked how many hours per week they spent playing...
A sample of 200 college freshmen was asked how many hours per week they spent playing video games. The following frequency distribution presents the results. Number of Hours Frequency 1.0- 3.9 20 4.0- 6.9 32 7.0- 9.9 47 10.0- 12.9 28 13.0- 15.9 24 16.0- 18.9 18 19.0- 21.9 12 22.0- 24.9 7 25.0- 27.9 4 28.0- 30.9 8 1) What is the class width? 2) What percentage of students play video games for less than 19 hours per week?...
A random sample of 15 college students were asked "How many hours per week typically do...
A random sample of 15 college students were asked "How many hours per week typically do you work outside the home?" Their 13 responses are shown on the right 31 13 Determine the shape of the distribution of hours worked by drawing a frequency histogram and computing the mean and median 18 Which measure of central tendency better describes hours worked? 16 18 25 28 20 24 15 Choose the correct frequency histogram below Hours Worked per Week OA Hours...
QUESTION 10 Studies suggest that there is a strong correlation between GPA and weekly hours spent...
QUESTION 10 Studies suggest that there is a strong correlation between GPA and weekly hours spent studying for high school students. A random sample of 30 high school students produced the following linear regression results for predicting GPA from hours spent studying: Regression Statistics R Square 0.650 Observations 30 Intercept Hours Coefficients 0.976 0.226 Select the correct labels for the variables GPA and hours spent studying in this setting. O Hours spent studying is the response variable and GPA is...
A small group of students was asked, "How many hours do you spend studying in a...
A small group of students was asked, "How many hours do you spend studying in a typical week?" The results were: 10, 10, 25, 8, 5, 5. What is the count A small group of students was asked, "How many hours do you spend studying in a typical week?" The results were: 10, 10, 25, 8, 5, 5. What is the maximum? A small group of students was asked, "How many hours do you spend studying in a typical week?"...
A sample of 200 high school students were asked how many hours per week they spend...
A sample of 200 high school students were asked how many hours per week they spend watching television. The following frequency distribution presents the results. Time Spent Watching Television Number of hours Frequency 0.0-3.9 38 4.0.7.9 38 8.0-11.9 34 12.0-15,9 23 16.0-19.9 24 20.0-23.9 23 24.0-27.9 20
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)...
Question 21
Random sample of college students were asked how many hours they spent studying per day. The results summarized by sex are given in the following table. Hours Spent Studying Less than 3 3 or more Total Males 36 64 100 Females 12 56 68 Total 48 120 168 Do these data provide evidence at the 0.01 level of significance to conclude that sex and amount of time spent studying are dependent? Begin by filling in the following tables....
15 pts D Question 7 Random sample of college students were asked how many hours they spent studying per day. The results summarized by sex are given in the following table. Hours Spent Studying 3 or more Total Less than 3 Males 100 36 64 Females 12 56 68 Total 168 48 120 Do these data provide evidence at the 0.01 level of significance to conclude that sex and amount of time spent studying are dependent? Begin by filling in...
A random sample of 15 college students were asked "How many hours per week typically do you work outside the home?" Their 13 responses are shown on the right 31 13 Determine the shape of the distribution of hours worked by drawing a frequency histogram and computing the mean and median 18 Which measure of central tendency better describes hours worked? 16 18 25 28 20 24 15 Choose the correct frequency histogram below Hours Worked per Week OA Hours...
QUESTION 10 Studies suggest that there is a strong correlation between GPA and weekly hours spent studying for high school students. A random sample of 30 high school students produced the following linear regression results for predicting GPA from hours spent studying: Regression Statistics R Square 0.650 Observations 30 Intercept Hours Coefficients 0.976 0.226 Select the correct labels for the variables GPA and hours spent studying in this setting. O Hours spent studying is the response variable and GPA is...
A sample of 200 high school students were asked how many hours per week they spend watching television. The following frequency distribution presents the results. Time Spent Watching Television Number of hours Frequency 0.0-3.9 38 4.0.7.9 38 8.0-11.9 34 12.0-15,9 23 16.0-19.9 24 20.0-23.9 23 24.0-27.9 20
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)...
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