HomeworkLib
Question

A Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational...

A Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational attitude toward school, and study habits of students. Scores range from 0 to 200. The mean for Canadian college students is about 115, and the standard deviation is about 30. A teacher who suspects this population average to be incorrect gives the SSHA to 25 students who are at least 30 years of age. The sample average score is 127.8. Calculate the p-value.

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Note:Final answer is highlighted in colour.

Hypothesis:

H0: \mu_0 =115

Ha: \mu_0 \neq 115

Given,

\overline{X}= 127.8, \sigma = 30, n= 25.

Z= \frac{\overline{X}-\mu_0}{\sigma/\sqrt{n}} = \frac{127.8-115}{30/\sqrt{25}}

= 2.13

p value for Z= 2.13 is 0.033172

We can reject the null hypothesis and conclude that the mean score is different from 115

0 0
Add a comment
Know the answer?
Add Answer to:
A Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational...

    A Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational attitude toward school, and study habits of students. Scores range from 0 to 200. The mean for Canadian college students is about 115, and the standard deviation is about 30. A teacher who suspects this population average to be incorrect gives the SSHA to 25 students who are at least 30 years of age. The sample average score is 127.8. Calculate the p-value. Select...

  • Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational attitude...

    Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational attitude toward school, and study habits of students. Scores range from 0 to 200. The mean for Canadian college students is about 115, and the standard deviation is about 30. A teacher who suspects this population average to be incorrect gives the SSHA to 25 students who are at least 30 years of age. The sample average score is 127.8. Calculate the p-value. Select one:...

  • Question 14 Not yet answered Marked out of A Survey of Study Habits and Attitudes (SSHA)...

    Question 14 Not yet answered Marked out of A Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational attitude toward school and study habits of students. Scores range from 0 to 200. The mean for Canadian college students is about 115, and the standard deviation is about 30. A teacher who suspects this population average to be incorrect gives the SSHA to 25 students who are at least 30 years of age. The sample...

  • 7. The Survey of Study Habitss and Attitudes (SSHA) is a psychological test that measures the...

    7. The Survey of Study Habitss and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Scores range from 0 to 200. The mean score for U.S. college students is about 115, and the standard deviation is about 30. A teacher who suspects that older students have better attitudes toward school gives the SSHA to 25 students who are at least 30 years of age. Their mean score is x =...

  • The Survey of Study Habits and Attitudes (SSHA) is a test that measures the motivation, attitude...

    The Survey of Study Habits and Attitudes (SSHA) is a test that measures the motivation, attitude toward school, and study habits of students. Scores range from 0-200. With regard to attitudes towards school, the mean score for U.S. college students is 115, with a standard deviation of 30. A teacher suspects that older students have better attitudes towards school and gives the SSHA to 35 students who are at least 30 years old. Their mean score was 123.2. Assume that...

  • The following information was accumulated from samples of new births taken from two provinces. A Survey...

    The following information was accumulated from samples of new births taken from two provinces. A Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivational attitude toward school, and study habits of students. Scores range from 0 to 200. The mean for Canadian college students is about 115, and the standard deviation is about 30. A teacher who suspects this population average to be incorrect gives the SSHA to 25 students who are at least...

  • ULA Fiduce IW 9. The Survey of Study Habits and Attitudes (SSHA) is a psychological test...

    ULA Fiduce IW 9. The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Scores range from 0 to 200. A selective private college gives the SSHA to a simple random sample of both male and female first-year students to study the difference in mean attitudes towards school and study habits between men and women. The data for men and women: n 5 Men 20 121.3...

  • The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the...

    The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude, and study habits of college students. Scores range from0 to 200 and follow (approximately) a Normal distribution with mean 113 and standard deviation 16. You suspect that incoming freshmen at your school have a mean m thatis different from 113 because they are often excited yet anxious about entering college. You give the SSHA to 23 incoming freshmen and find their mean score...

  • 5) Let X be the number of people who respond to an online survey of attitudes...

    5) Let X be the number of people who respond to an online survey of attitudes toward social media. Assume the survey is sent to 500 people and each has a probability of 0.40 of responding. You would like at least 250 people to respond to the survey. Estimate Prob (X 2 250), using the Normal approximation with a continuity correction. 6) College Graduation data in five Northern Midwestern states for Fall 2013 shows the graduation rate in Idaho to...

  • 1.. The average “psychological health” score for college professors in America is µ = 24 on...

    1.. The average “psychological health” score for college professors in America is µ = 24 on a standardized psychological health survey. A statistics student from Valpo wants to know if professors from Valpo have psychological health scores that are significantly lower than the national average. The student has 36 Valpo professors complete the survey and finds that their mean to be 21 with a standard deviation of 5. Do a one-tailed test. Would you reject the null hypothesis in this...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT