TIME REMAINING
43:08
n
Two hundred fifty people were surveyed to determine their favorite mode of transportation. What number of people chose
walking?
Transportation
Ride
Subway
Drive Car
17%
33%
Walk 14%
Bicycle
Take Bus
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What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test

Can random samples and proportional reasoning be used to determine precise information about a population? explain