The average mpg usage for a 2017 Toyota Prius for a sample of 10 tanks of gas was 45.5 with a standard deviation of 1.8. For a 2017 Ford Fusion, the average mpg usage for a sample of 10 tanks of gas was 42.0 with a standard deviation of 2.3. Assuming equal variances, at a = .01, is the true mean mpg lower for the Ford Fusion? (a-1) Choose the appropriate hypotheses. a. Ho-Htoy - ford ≤0 vs. H₁: Htoy - Hford > 0. Reject H₂ if tcalc > 2.552 ford ≤0 vs. H₁: Htoy - Hford > 0. Reject H₂ if tcalc <2.552 ford 20 vs. H₁: Htoy - ford ²0 vs. H₁: Htoy - ford <0. Reject He if tcalc <-2.552 ford <0. Reject H₂ if tcalc > -2.552 b. Hg: Htoy - c. He: Htoy - d. H₂-Htoy - Oc Od (a-2) Calculate the calc- (Round your answer to 4 decimal places.) tcalc

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The average mpg usage for a 2017 Toyota Prius for a sample of 10 tanks of gas was 45.5 with a standard deviation of 1.8. For a 2017
Ford Fusion, the average mpg usage for a sample of 10 tanks of gas was 42.0 with a standard deviation of 2.3.
Assuming equal variances, at a = .01, is the true mean mpg lower for the Ford Fusion?
(a-1) Choose the appropriate hypotheses.
a. Ho: Mtoy -
b. Hg: Htoy -
c. Ho: Mtoy -
d. Hg: Htoy -
Oa
tcalc
Oc
Od
ford ≤0 vs. H₁: Htoy - ford > 0. Reject H₂ if tcalc > 2.552
ford ≤0 vs. H₁: Htoy - Hford > 0. Reject H₂ if tcalc <2.552
ford 20 vs. H₁: Htoy - ford O. Reject Ho if tcalc < -2.552
ford 20 vs. H₁: Mtoy - ford <0. Reject He if tcalc > -2.552
(a-2) Calculate the calc- (Round your answer to 4 decimal places.)
Transcribed Image Text:The average mpg usage for a 2017 Toyota Prius for a sample of 10 tanks of gas was 45.5 with a standard deviation of 1.8. For a 2017 Ford Fusion, the average mpg usage for a sample of 10 tanks of gas was 42.0 with a standard deviation of 2.3. Assuming equal variances, at a = .01, is the true mean mpg lower for the Ford Fusion? (a-1) Choose the appropriate hypotheses. a. Ho: Mtoy - b. Hg: Htoy - c. Ho: Mtoy - d. Hg: Htoy - Oa tcalc Oc Od ford ≤0 vs. H₁: Htoy - ford > 0. Reject H₂ if tcalc > 2.552 ford ≤0 vs. H₁: Htoy - Hford > 0. Reject H₂ if tcalc <2.552 ford 20 vs. H₁: Htoy - ford O. Reject Ho if tcalc < -2.552 ford 20 vs. H₁: Mtoy - ford <0. Reject He if tcalc > -2.552 (a-2) Calculate the calc- (Round your answer to 4 decimal places.)
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