Bozeman is known for having a large number of drivers who own Subaru vehicles, p

Question

Bozeman is known for having a large number of drivers who own Subaru vehicles, perhaps because these vehicles are known to perform well in winter driving conditions. But, is the proportion of residents in Bozeman who own Subarus higher than a place like Madison, Wisconsin? Researchers randomly selected 500 phone numbers from all local landlines in both Bozeman and Madison and found that 198 Bozeman residents owned a Subaru, while only 147 Madison residents owned a Subaru. 2. a. B pts) Fill in the missing cells of the following two-way table to display the observed data from this study: Bozeman Madison Total Own Subaru Do not own Subaru Total 500 500 1000 b. [3 pts] What are the observational units? Circle one. (A) Subarus (B) Bozeman and Madison residents (C) Bozeman and Madison drivers (D) Researchers pts] Identify the explanatory and response variables in this study. d. 13 pts] What is the appropriate set of null and alternative hypotheses for this study? Cire one. (B). Ho: Ad-0 (A)Ho: HBozeman -HMadison0 > 0 (C). Ho: TBozeman - TMadison (D). Ho:T 0.5 HA:T0.5 Madison (4 pts] Calculate the observed difference in proportions (Bozeman -Madison) and include proper notation. e.

Explanation / Answer

b)B

c)Response- Whether owned a Subaru

Explanatory-Region of residence

d)A

e) p1=198/500

p2=147/500

Difference in Proportion=198/500-147/500=51/500

f)

g) Conclude that the proportion of subaru owners in Bozeman And Madisson are equal when that in bozeman is actually greater.

h) B

i) B

j)A

h) The rate of snowfall influenceds the number of accidents and the type of tyre they must use for a safe travel.So the rate of snowfall is important.

2. C

3. B

Bozeman Madison Total Own subaru 198 147 345 Do not Own Subaru 302 353 655 500 500 1000

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