Mathematics
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?

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Nationally, about 11% of the total u. s. wheat crop is destroyed each year by hail.† an insurance co...

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