a. State the null and alternative hypothesis for the claim that Route A takes longer on average than Route B. b. We will use a/an (unpooled or pooled) t-test with _____ degrees of freedom. c. Calculate the standardized test statistic for the hypothesis test, rounded to 2 decimal places.
Morgan wants to test the speed for two different routes she can take to ride her bicycle home from work. Route A involves riding her bicycle on a busy road, and Route B involves riding her bicycle along a scenic trail. Assume that the population variances are not equal.
Morgan collects some data, given below:
Route A: xA=17.1 minutes, sA=4.6 minutes, nA=33
Route B: xB=15.8 minutes, sB=4.2 minutes, nB=39
_______________________________________________________________________________________
a. State the null and alternative hypothesis for the claim that Route A takes longer on average than Route B.
b. We will use a/an (unpooled or pooled) t-test with _____ degrees of freedom.
c. Calculate the standardized test statistic for the hypothesis test, rounded to 2 decimal places. Keep in mind that the formula for the denominator depends on whether the test is pooled or unpooled.
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