Do male and female college students have the same distribution
of living arrangements? Use a level of significance of 0.05.
Suppose that 101 randomly selected male college students and 51
randomly selected female college students were asked about their
living arrangements: dormitory, apartment, or other. The results
are shown in Table. Do male and female college students have the
same distribution of living arrangements?
Dormitory | Apartment | Other | |
---|---|---|---|
Male | 41 | 34 | 26 |
Female | 19 | 27 | 5 |
What is the chi-square test-statistic for this data?
χ2=χ2=
Do male and female college students have the same distribution of living arrangements? Use a level...
2. Psychologist was interested in exploring whether or not male and female college students have different driving behaviors. Is there sufficient evidence at the a= 0.05 level to conclude that the variance of the fastest speed driven by male college students differs from the variance of the fastest speed driven by female college students? Here is a descriptive summary of the results of her survey: Males (x) N=30 x = 108 Females (y) N = 25 y = 93.5 Sx...
9. A De Anza statistics instructor wonders about the performance of male and female college students in her statistics class. She wants to know whether there is a difference between final exam scores of male and female students. From all of the statistics classes she has taught in the last two years, she randomly selected scores of 63 female students and 58 male students. The females had a sample mean score of 78 with a standard deviation of 6. The...
(1 point) Do male and female skiers differ in their tendency to use a ski helmet? Ruzic and Tudor (2011) report a study in which 710 skiers completed a survey about aspects of their skiing habits. Suppose the results from the question on the survey about ski helmet usage were as follows: Helmet Usage Never Occasionally 242 Gender Always 180 72 Male Female 82 Ruzic, L. and Tudor, A. (2011): Risk-taking behaviour in skiing among helmet wearers and nonwearers. Wilderness...
(1 point) Do male and female skiers differ in their tendency to use a ski helmet? Ruzic and Tudor (2011) report a study in which 710 skiers completed a survey about aspects of their skiing habits. Suppose the results from the question on the survey about ski helmet usage were as follows: Helmet Usage Never Occasionally Always 241 84 169 106 31 79 Gender Male Female Ruzic, L. and Tudor, A. (2011): Risk-taking behaviour in skiing among helmet wearers and...
A survey was conducted two years ago asking college students their top motivations for using a credit card. The percentages are shown in the table to the right. Also shown in the table is the observed frequency for these motivations from a current random sample of college students who use a credit card. Complete parts a through c below. Response Old Survey % New Survey Frequency, f Rewards 2727% 112112 Low rates 2323% 9797 Cash back 2222% 109109 Discounts...
Do students need Summer Development? For 108 randomly selected college applicants, the following frequency distribution for entrance exam scores was obtained. Construct a histogram, frequency polygon, and ogive for the data. (The data for this exercise will be used for Exercise 13 in this section.) Class limits Frequency 90–98 6 99–107 22 108–116 43 117–125 28 126–134 9 Applicants who score above 107 need not enroll in a summer developmental program. In this group, how many students do not have...
Do college students enjoy playing sports just as much as watching sports? A researcher randomly selected ten college students and asked them to rate playing sports and watching sports on a scale from 1 to 10 with 1 meaning they have no interest and 10 meaning they absolutely love it. The results of the study are shown below. Playing Vs. Watching Sports Play 1 5 10 7 93 4 6 10 7 Watch 1 2 5 7 8 1 2...
Population o El Camino Students (P1- Students who use Instagram more than 7 hours per week, P2- Students who use Instagram less than 7 hours per week) Variable o Time Spent on Instagram per week (7+hours(yes) below 7(no)) GPA (3.0 or higher (yes) or below 3.0(no)) -Boolean Parameter: Proportion "P1, P2" The group MWA in Professor Love's class wants to test using a significance level of 0.05 if students at El Camino Community College who use Instagram for 7 hours...
7/20/2020 Section 11.18 112-3470250 SUM20. section 701, Summer 1 2020 | WebAssign 6. (-19 Points] DETAILS PECKSTATLO1 15.2.L0.004.DS. MY NOTES PRACTICE ANOTHER Do males and females have the same distribution of mode of transportation on a Saturday night? Suppose that 450 randomly selected people at a club are asked about how they plan to get home-drive, drive with a friend, take public transit, or take a cab. Use a level of significance of a = 0.05. Drive Public Transit Cab...
The grade point averages of 341 students who completed a college course in financial accounting have a standard deviation of 0.945. The grade point averages of 75 students who dropped out of the same course have a standard deviation of 0.762. Do the data indicate a difference between the variances of grade point averages for students who completed a financial accounting course and students who dropped out? Use a 0.05 level of significance. Let the students who completed the course...