subject
Mathematics, 03.12.2019 22:31 achasengnou792

Nationally, about 11% of the total u. s. wheat crop is destroyed each year by hail.† an insurance company is studying wheat hail damage claims in a county in colorado. a random sample of 16 claims in the county reported the percentage of their wheat lost to hail. 15 9 10 11 13 21 12 12 8 11 22 19 15 11 12 3 the sample mean is x = 12.8%. let x be a random variable that represents the percentage of wheat crop in that county lost to hail. assume that x has a normal distribution and σ = 5.0%. do these data indicate that the percentage of wheat crop lost to hail in that county is different (either way) from the national mean of 11%? use α = 0.01.(a) what is the level of significance? state the null and alternate hypotheses. will you use a left-tailed, right-tailed, or two-tailed test?

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:30, leeenaaa95
On a architect's drawing of a house, 1 inche representa 1.5
Answers: 1
image
Mathematics, 21.06.2019 16:00, maddy3lizabeth
Find the amount in a continuously compounded account for the given condition. principal: $1000, annual interest rate: 4.8%, time: 2 yr
Answers: 3
image
Mathematics, 21.06.2019 17:00, 19youngr
You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?
Answers: 1
image
Mathematics, 21.06.2019 19:00, L3Zenith
What is not true about kl and mn? what is mn? (show )
Answers: 2
You know the right answer?
Nationally, about 11% of the total u. s. wheat crop is destroyed each year by hail.† an insurance co...

Questions in other subjects: