a) Clearly label and state the appropriate null and alternative hypotheses.b) State your evidence-based conclusion in a well written contextual sentence for a general audience– be sure your conclusion is not about rejecting or not rejecting hypotheses as a general audiencewouldn’t even know what the hypotheses are. Look at the conclusions in the annotated examples.1. In a journal article it was reported that 54% of kids have a snack after school. A researcherbelieves this percentage is too low and in a sample of 60 kids finds that 59% have a snack afterschool. Assuming the true percentage is 54% the chance of this sample result is 0.35. 2. A newspaper report states that the mean age of commercial jets in the United States is 14 years.An executive of AirJet, a large airline company, claims that the mean age of the planes in hiscompany is lower. He selects a sample of 36 planes and find the mean age to be 11.8 years.Assuming his planes is the same as the national average the chance of this outcome is 0.005. 3. In 2012, shortly after the Sandy Hook Elementary School shootings people wanted to know if amajority of American adults favored strengthening the laws covering the sale of firearms. AGallup poll found that 58% of those polled favored strengthening these laws. Assuming 50%support, the chance of this outcome is .032.
a) Clearly label and state the appropriate null and alternative hypotheses.
b) State your evidence-based conclusion in a well written contextual sentence for a general audience
– be sure your conclusion is not about rejecting or not rejecting hypotheses as a general audience
wouldn’t even know what the hypotheses are. Look at the conclusions in the annotated examples.
1. In a journal article it was reported that 54% of kids have a snack after school. A researcher
believes this percentage is too low and in a sample of 60 kids finds that 59% have a snack after
school. Assuming the true percentage is 54% the chance of this sample result is 0.35.
2. A newspaper report states that the mean age of commercial jets in the United States is 14 years.
An executive of AirJet, a large airline company, claims that the mean age of the planes in his
company is lower. He selects a sample of 36 planes and find the mean age to be 11.8 years.
Assuming his planes is the same as the national average the chance of this outcome is 0.005.
3. In 2012, shortly after the Sandy Hook Elementary School shootings people wanted to know if a
majority of American adults favored strengthening the laws covering the sale of firearms. A
Gallup poll found that 58% of those polled favored strengthening these laws. Assuming 50%
support, the chance of this outcome is .032.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
