An interior decorator wants to compare the prices at 2 stores to see if their mean prices are significantly different. She gathers the prices at each store on the same 26 items (from bath mats to window curtains). •What kind of hypotheisis test is this? 2 Means Matched Pairs t-test O1 Mean t-test O2 Independent Means t-test O 1 Proportion z-test O 2 Proportions z-test •Which hypotheses do we want to test? O Họ: H1 = H2 HA: H1> H2 O Họ: H1 = H2 HẠ: H1= H2 O Họ: H1 # H2 HA: H1 = H2 O Họ: H1 = H2 HA: H1< HZ

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## Hypothesis Testing for Price Comparison

An interior decorator wants to compare the prices at 2 stores to see if their mean prices are significantly different. She gathers the prices at each store on the same 26 items (from bath mats to window curtains).

### What kind of hypothesis test is this?

- o 2 Means Matched Pairs t-test
- o 1 Mean t-test
- o 2 Independent Means t-test
- o 1 Proportion z-test
- o 2 Proportions z-test

### Which hypotheses do we want to test?

- o H0: μ1 = μ2
    HA: μ1 > μ2
- o H0: μ1 = μ2
    HA: μ1 ≠ μ2
- o H0: μ1 ≠ μ2
    HA: μ1 = μ2
- o H0: μ1 = μ2
    HA: μ1 < μ2
Transcribed Image Text:## Hypothesis Testing for Price Comparison An interior decorator wants to compare the prices at 2 stores to see if their mean prices are significantly different. She gathers the prices at each store on the same 26 items (from bath mats to window curtains). ### What kind of hypothesis test is this? - o 2 Means Matched Pairs t-test - o 1 Mean t-test - o 2 Independent Means t-test - o 1 Proportion z-test - o 2 Proportions z-test ### Which hypotheses do we want to test? - o H0: μ1 = μ2 HA: μ1 > μ2 - o H0: μ1 = μ2 HA: μ1 ≠ μ2 - o H0: μ1 ≠ μ2 HA: μ1 = μ2 - o H0: μ1 = μ2 HA: μ1 < μ2
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