Question

1) A professor at a large university believes that students take an average of 15 credit...

1) A professor at a large university believes that students take an average of 15 credit hours per term. A random sample of 24 students in her class of 250 students reported the following number of credit hours that they were taking:  (HINT: Put into L1 and then choose data when constructing the test.)

12

13

14

14

15

15

15

16

16

16

16

16

17

17

17

18

18

18

18

19

19

19

20

21

Does this sample indicate that students are taking more credit hours than the professor believes? Test an appropriate hypothesis and state your conclusion.

Homework Answers

Answer #1

here we use t test for me

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A professor at a large university believes that students take an average of 15 credit hours...
A professor at a large university believes that students take an average of 15 credit hours per term. A random sample of 24 students in her class of 250 students reported the following number of credit hours that they were taking: 15 21 16 20 19 14 19 19 19 13 16 17 20 19 13 13 17 13 13 13 13 19 14 19 1. What is the mean for this sample of 24 students? Round to one decimal...
Scenario 4 A professor at a large university believes that students take an average of 15...
Scenario 4 A professor at a large university believes that students take an average of 15 credit hours per term. A random sample of 24 students in her class of 250 students reported the following number of credit hours that they were taking: 12 13 14 14 15 15 15 16 16 16 16 16 17 17 17 18 18 18 18 19 19 19 20 21 Questions 17 to 19 pertain to Scenario 4. Question 17 (1 point) Saved...
A professor in the education department believes that a sample of students study less hours per...
A professor in the education department believes that a sample of students study less hours per week when compared to the general population of university students. The general population of university students studies an average of 15 hours a week with a standard deviation of 2. The professor randomly samples 16 students and discovers her sample has a mean of 12. Use an alpha level of 0.05 to determine whether these students study less hours per week when compared to...
4) A statistics professor is studying the learning styles of college students. The professor would like...
4) A statistics professor is studying the learning styles of college students. The professor would like to determine the effect of material delivery method (traditional classroom lecture, on-line, hybrid classroom and on-line, and self study) on comprehension. a) State the Hypothesis to show comprehension depends on delivery method. b) Choose a level of significance Use a = 0.05 for this problem. c) To test the hypothesis, the professor randomly divided his class of 80 students into four groups of 20...
Test, at the 1% level of significance, whether the average business has more than 15 employees....
Test, at the 1% level of significance, whether the average business has more than 15 employees. Answer using excel. Employees 14 17 17 6 8 17 21 16 6 17 11 17 15 16 20 19 6 12 17 22 20 17 11 11 9 22 17 18 21 20 26 7 16 19 18 11 21 17 25 16 22 14 14 16 18 20 21 11 19 13 6 11 19 14 18 31 13 15 17 21...
A professor at a university wants to estimate the average number of hours of sleep students...
A professor at a university wants to estimate the average number of hours of sleep students get during exam week. On the first day of exams, she asked 21 students how many hours they had slept the night before. The average of the sample was 4.72 with a standard deviation of 1.58. When estimating the average amount of sleep with a 90% confidence interval, what is the margin of error? Question 3 options: 1) 0.5947 2) 0.5933 3) 0.3448 4)...
A professor has a teaching assistant record the amount of time (in minutes) that a sample...
A professor has a teaching assistant record the amount of time (in minutes) that a sample of 16 students engaged in an active discussion. The assistant observed 8 students in a class who used a slide show presentation and 8 students in a class who did not use a slide show presentation. With Microsoft PowerPoint Without Microsoft PowerPoint 18 4 21 5 13 23 15 9 8 12 11 7 19 14 10 6 Use the normal approximation for the...
A professor has a teaching assistant record the amount of time (in minutes) that a sample...
A professor has a teaching assistant record the amount of time (in minutes) that a sample of 16 students engaged in an active discussion. The assistant observed 8 students in a class who used a slide show presentation and 8 students in a class who did not use a slide show presentation. With Microsoft PowerPoint Without Microsoft PowerPoint 12 13 4 15 7 18 11 19 10 14 23 8 9 21 5 6 Use the normal approximation for the...
The data set below shows the number of alcoholic drinks that students at a certain university...
The data set below shows the number of alcoholic drinks that students at a certain university reported they had consumed in the past month. Complete parts a through c. 13 15 16 17 12 14 17 19 13 13 a. Assume that the data set is a sample. Compute the​ range, variance, standard​ deviation, and interquartile range for the data set.
a sample have 10 students the average score in math is less than the average in...
a sample have 10 students the average score in math is less than the average in english x1= test scores in math x2= test scores in english assume the scores follow normal distribution let u1 be the population mean of math scored let u2 be the population mean of english score the score are given below student. math. english 1. 18. 22 2. 22. 24 3. 19. 16 4. 23. 19 5. 20. 21 6. 18. 18 7. 16. 17...