1. the marketing manager of a firm that produces laundry products decides to test market a new laundry product in each of the firm's two sales regions. he wants to determine whether there will be a difference in mean sales per market per month between the two regions. a random sample of 12 supermarkets from region 1 had mean sales of 88 with a standard deviation of 5.6. a random sample of 17 supermarkets from region 2 hacd a mean sales of 76.9 with a standard deviation of 6.3. does the test marketing reveal a difference in potential mean sales per market in region 2?
2. let be the mean sales per market in region 1 and î¼2 be the mean sales per market in region 2. use a significance level of î± = 0.05 for the test. assume that the population variances are not equal and that the two populations are normally distributed. what is the value of the t-statistic? (round your answer to two decimal places)

x/7.50 = 15

x= 7.50 / 15 divide

step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

what are you trying to solve here

step-by-step explanation: