ZuoTi.Pro
Question

Imagine that you wish to examine two sample means to decide if you can reject the...

Imagine that you wish to examine two sample means to decide if you can reject the hypothesis that µ1= µ2. The sample means are comprised of GPAs (grade point averages) that were collected from different, randomly chosen, students at two different universities. Which of the following types of tests should you use?

Group of answer choices

A z test

A one-sample t test

A paired-samples t test

An independent-samples t test

None of the tests listed above could be appropriate.

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

Answer:

An independent-samples t test

Explanation:

For the given hypothesis test scenario, we have to compare the two population means and we are not given the values for the population standard deviations or the variances, so we need to use the two sample t test for the independent samples t test for the difference between the two population means.

0 0
Add a comment
Answer #2
You should use an independent-samples t test to compare the means of the two samples of GPAs collected from different, randomly chosen, students at two different universities.
answered by: Hydra Master
0 0
Add a comment
Know the answer?
Add Answer to:
Imagine that you wish to examine two sample means to decide if you can reject the...
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

  • 1. You decide to test different samples for musical preferences: Baby Boomers, generation X and generation...

    1. You decide to test different samples for musical preferences: Baby Boomers, generation X and generation Z. Which type of inferential method, or case, is most appropriate for this scenario? A. ANOVA B. Independent samples C. Matched pairs 2.You have been asked to study the driving habits of marital couples; those living in the same household as a married couple. You want to measure the speed of spouse 1 and the speed of spouse 2 with the same vehicle. You...

  • 3 and 4 3. Indicate df for the following statistical tests: a. One sample t test...

    3 and 4 3. Indicate df for the following statistical tests: a. One sample t test b. Independent samples t test (same N's in both groups) c. Independent samples t test (different N's) d. Paired samples t test e. Testing whether correlation coefficient is different from 0. 4. Assume you have two independent samples that you wish to compare. One sample has an N of 14 and the other has an N of 10. For a = .05, two tailed...

  • When you conduct a t test for independent means, ____. Group of answer choices you reject...

    When you conduct a t test for independent means, ____. Group of answer choices you reject the null hypothesis if the t score is more extreme than the cutoff (criterion) t score you need to make sure that the medians of the two populations are equal you need to make sure that the two sample sizes are exactly the same you should only use an alpha level of .01 because of the lower power of this test compared to dependent-means...

  • Suppose you want to test the claim that µ1 < µ2. Two samples are randomly selected...

    Suppose you want to test the claim that µ1 < µ2. Two samples are randomly selected from each population. The sample statistics are given below. At a level of significance of α = 0.05, when should you reject H0? n1 = 35              n2 = 42 x̅1 = 29.05         x̅2 = 31.6 s1 = 2.9              s2 = 2.8 Suppose you want to test the claim that u1<p2. Two samples are randomly selected from each population. The sample statistics are given...

  • You are conducting a two independent samples t-test of the population means with a two-sided Hawith...

    You are conducting a two independent samples t-test of the population means with a two-sided Hawith =0.05. The sample sizes are n1=35 and n2=45. The p-value of your test is 0.003. What is your decision? O Do Not Reject Ho Reject Ho

  • Suppose administrators at a large school district decide to institute mandatory study halls at their middle...

    Suppose administrators at a large school district decide to institute mandatory study halls at their middle schools in an effort to boost their students' academic performance. After one year, a guidance counselor decides to test whether students' grade point averages (GPAs) have improved compared to the previous school year. The counselor selects a random sample of 25 eighth-graders from throughout the district who were also enrolled in the district for seventh grade. He records their GPAs for grades seven and...

  • Suppose administrators at a large school district decide to institute mandatory study halls at their middle...

    Suppose administrators at a large school district decide to institute mandatory study halls at their middle schools in an effort to boost their students' academic performance. After one year, a guidance counselor decides to test whether students' grade point averages (GPAs) have improved compared to the previous school year. The counselor selects a random sample of 30 eighth-graders from throughout the district who were also enrolled in the district for seventh grade. He records their GPAs for grades seven and...

  • You sample 20 pairs of teenage fraternal twins for average total cholesterol. We wish to test...

    You sample 20 pairs of teenage fraternal twins for average total cholesterol. We wish to test the hypothesis that girls’ total cholesterol is higher than that of boys’. Why might you want to sample twins, versus randomly selected unrelated boys and girls? You sample 20 pairs of teenage fraternal twins for average total cholesterol. We wish to test the hypothesis that girls’ total cholesterol is higher than that of boys’. Which of these outputs is most applicable for completing the...

  • Question 2 The primary advantage of the related samples design is that it controls for ________...

    Question 2 The primary advantage of the related samples design is that it controls for ________ that may artificially increase the observed differences between means in other types of studies. Group of answer choices degrees of freedom MD individual differences the effect of the treatment Question 3 A manager would like to know if the performance of sales representatives significantly (α = .05) improves over the first 6 months of employment. For 5 new sales representatives, the number of sales...

  • You wish to test the following claim (Ha) at a significance level of α=0.001. d denotes...

    You wish to test the following claim (Ha) at a significance level of α=0.001. d denotes the mean of the difference between pre-test and post-test scores.      Ho:μd=0 Ha:μd<0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=127 subjects. The average difference (post - pre) is ¯d=−6.8 with a standard deviation of the differences of sd=24.7 The test statistic's value is (-6.8-0)/(24.7/sqrt(127)) =...

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
ADVERTISEMENT