subject
Mathematics, 06.07.2020 16:01 sports1997

The mean yield of corn in the United States is about 135 bushels per acre. A survey of 50 farmers this year gives a sample mean yield of x = 138.4 bushels per acre. We want to know whether this is good evidence that the national mean this year is not 135 bushels per acre. Assume that the farmers surveyed are an SRS from the population of all commercial corn growers and that the standard deviation of the yield in this population is on 10 bushels per acre. Required:
a. Conduct a hypothesis test to determine if the corn yield has changed using 0.05 as significant level.
b. Write out the hypotheses and report the P-value. Are you convinced that the population mean is not 135 bushels per acre?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 18:40
If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)
Answers: 1
question
Mathematics, 21.06.2019 20:30
Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.
Answers: 1
question
Mathematics, 21.06.2019 22:00
Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.
Answers: 2
question
Mathematics, 22.06.2019 00:30
Astrid spent $36 on new shoes. this was $12 less than twice what she spent on a new skirt. part a: which equation would solve for how much she spent on the skirt? part b: solve the equation in the workspace provided below. how much did astrid spend on her skirt?
Answers: 1
You know the right answer?
The mean yield of corn in the United States is about 135 bushels per acre. A survey of 50 farmers th...
Questions
Questions on the website: 13722367