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View History Bookmarks People Window Help Take a Test Tosura Mayfieid Secure https://www.mathxl t/PlayerTest.aspxtestid 17352694 BMAL311 C90 Business Statistics Tosura Mayfieid& 123/17 9:40 PM Timo Remaining: 02-18:30 Submit Teat This Test: 300 pts possible Test: Midterm 2 This Question: 16 pts 170f 35 (5 complete) The folldwing two samples were collected as matched pairs. Complete paits (a) through ld) below Pair Sample 1 65 10 577 Sample 233 3 45 a.State the rull ard alternative hypotheses to test r a deerence in mers exist·bet-en t, pep later" memaerded by Siro. tnd 2 La., be te pepia mean of matched-par dmerences for Sample 1 minus Sample 2·choose te oroa answer teow OD, Hours b. Calculate the appropriae test statistic and interpret the nesuts of the hypothesis test using .10 The test statistic is (Round to to decimat places as needed ) Optio Click to select your answers ools not affect your grade

Explanation / Answer

The statistical software output for this problem is:

Paired T hypothesis test:
D = 1 - 2 : Mean of the difference between Sample 1 and Sample 2
H0 : D = 0
HA : D 0
Hypothesis test results:

Hence,

a) Hypotheses: Option C is correct.

b) Test statistic = 3.87

Critical values = -1.94, 1.94

Interpretation: Option B is correct.

c) Assumptions: Option B is correct.

Difference Mean Std. Err. DF T-Stat P-value Sample 1 - Sample 2 2.8571429 0.73771111 6 3.8729833 0.0082

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