At two different branches of a department store, pollsters randomly sampled 100 customers at store 1 and 80 customers at store 2, all on the same day. At Store 1, the average amount purchased was $41.25 per customer with a sample standard deviation of $24.25. At Store 2, the average amount purchased was $45.75 with a sample standard deviation of $34.76. Required:
a. Construct a 95% confidence interval for the mean amount purchased per customer in Store 1 and Store 2.
b. Construct a 95% confidence interval for the difference between the means of purchases per customer of the two stores.

idk

step-by-step explanation:

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4