On average, Americans eat about 8.30 pounds of grapes per year (σ = 1.70). A local grocery store wants to renew their contract with their supplier but is concerned they are buying too many grapes and not selling enough. They surveyed 30 frequent shoppers’ receipts for the last year and found that they eat an average of 8.05 pounds of grapes per year (SD = 1.89). You are interested in whether the grocery store’s sample eats less grapes than the general population.

Answer the following questions regarding hypothesis testing for this data set (20 points total: 23a, 23b, 23c, 23d, 23e, 23f)

What is your null and alternative hypothesis?

-2/

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

answer: apothems is your answer

step-by-step explanation: hope u get it right