Mathematics, 21.02.2020 03:50 ultimatesaiyan
A college student is interested in whether there is a difference between male and female students in the amount of time spent doing volunteer work each week. The student gathers information from a random sample of male and female students on her campus. Amount of time volunteering (in minutes) is normally distributed. The data appear next. They are measured on an interval-ratio scale and are normally distributed.
Males Females
20 35
25 39
35 38
40 43
36 50
24 49
1. What is the average volunteering time for males?
2. What is the average volunteering time for females?
3. What is the value of t?
4. According to Table A.2, what is the critical value of t, assuming a one-tailed test and a .05 level of significance?
5. Is our t-value significant according the value of Question 4?
Answers: 2
Mathematics, 21.06.2019 21:30, Caixiayang3613
Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?
Answers: 1
Mathematics, 22.06.2019 05:20, coolkid2041
These dots plots show the height (in feet) from a sample of the different types of elephants
Answers: 3
A college student is interested in whether there is a difference between male and female students in...
Mathematics, 01.10.2019 22:20