Question

Is there a relationship between car purchases and political party? You make a tabulation of people who were asked about the origin of their primary car and their political party affiliation. To determine if Political Party and Car Origin are dependent, what are the appropriate hypotheses?

Question 1 options:

	1) HO: Political Party and Car Origin are independent of each other. HA: Political Party and Car Origin display a negative correlation.
	2) HO: Political Party and Car Origin are related to each other. HA: Political Party and Car Origin are independent of each other.
	3) HO: Political Party and Car Origin are not related to one another. HA: Political Party and Car Origin are related to one another.
	4) HO: Political Party and Car Origin are not related to one another. HA: Political Party and Car Origin display a positive correlation.
	5) There is no correct set hypotheses given.

While attempting to measure its risk exposure for the upcoming year, an insurance company notices a trend between the age of a customer and the number of claims per year. It appears that the number of claims keep going up as customers age. After performing a regression, they find that the relationship is (claims per year) = 0.102*(age) + 6.592. If a customer is 45 years old, how many claims would you expect them to make in a given year?

Question 7 options:

	1) 376.55
	2) 11.18
	3) 296.74
	4) We do not know the observations in the data set, so we cannot answer that question.
	5) 4.59

Suppose that for a typical FedEx package delivery, the cost of the shipment is a function of the weight of the package. You find out that the regression equation for this relationship is (cost of delivery) = 2.962*(weight) + 6.347. Interpret the slope.

Question 8 options:

	1) When weight increases by 1 pound, cost of delivery increases by 2.962 dollars.
	2) When cost of delivery increases by 1 dollar, weight increases by 2.962 pounds.
	3) When weight increases by 1 pound, cost of delivery increases by 6.347 dollars.
	4) When cost of delivery increases by 1 dollar, weight increases by 6.347 pounds.
	5) We are not given the dataset, so we cannot make an interpretation.

Answer 1

Solution:

Question 1:

Question 1 options:

	3) HO: Political Party and Car Origin are not related to one another. HA: Political Party and Car Origin are related to one another.

Here we take this option because we have to check is ther any correlation between both the variable or not have to check it is positive or negative then hypothesis will be different

Question:

claims per year) = 0.102*(age) + 6.592.

Using this equation we have to find the value of claims per year when value of age is 45

Therefore claims per year) = 0.102*(45) + 6.592.

Hence claim per year = 11.18

Answer will be

11.82

Now

Question 8 options:

1) When weight increases by 1 pound, cost of delivery increases by 2.962 dollars.

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