Text: stat3Original spZDa (I)F Inboy Your Student Newsletter BwelybaddbbwefTempstate Downloads-/stat3Originalk2Csp2daK2Orf}pdf fileJlC YUsers khawa/AppData localPackages/Microsoft Microsoftdge Finance D Page view A" Read aloud of each other: Use this data to test the claim that the samples are drawn from populations that are independent. Two samples with a significance level of 0.05_ (20 pls) cibuth populations are the same. Use that to claim that the means Sample Sample State the claim: ( Zpls} b) State the Null Hypothesis: ( Zpt) state the Alternative Hypothesis: (2pt) Determine the type of test to use (Tpo) Determine the critical values ({ (2p1) Find the Test statistic (TS): (8 pt) Decision and Conclusion (Spt) search PrtScn Home End PgUp PgDn W E R
Added by Shelly T.
Close
Step 1
Step 1: State the claim The claim is that the means of two populations are the same. Show more…
Show all steps
Your feedback will help us improve your experience
Krishna G and 51 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Sri K.
Use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations. A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The results are given below. At the 0.05 significance level, test the claim that the mean score is not affected by the course. Before 74 83 75 88 84 63 93 84 91 77 After 73 77 70 77 74 67 95 83 84 75 a) State the hypothesis? b) What are your critical value(s)? c) What is your test statistics? d) What is the conclusion with respect to the null hypothesis? e) What is the conclusion with respect to the claim? f) Construct a 95% confidence interval for the mean difference between before and after.
Adi S.
Question 4: Independent-Samples t-Test f. Write out the t-test formula using the numbers given in the output. Make sure to write out the original formula in symbols before putting in the numbers from the output. g. Complete Hypothesis Test Step 4. i. Decision about null hypothesis? ii. Is it significant? iii. Sentence iv. APA style
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD