don Completiön Status: QUESTION 1 What is NOT among the purposes of "inferential statistics"? O a. estimating characteristics of a population based on a sample Ob. testing results for statistical significance O c. establishing the superiority of quantitative methods over qualitative methods O d. all of the above are purposes of inferential statistics QUESTION 2 WL Li Click Save and Submit to save and subrmit. Click Saue All Ansuwers to save all answers.

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A: here given , confidence level  =  90%  margin of error = 0.10

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Q: 4. Upper 38% 5. Lower 55%

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A: Given: x̅1= 2.35 x̅2=2.67 s1=0.61 s2=0.95 n1=33 n2=30

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Q: Illustration Solution 6. z> -2.05 -2 -1 7. z -1.75 -2 -1 1 9. 0.66 z > 2.04

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