4. A 2012 Gallup poll surveyed Americans about their employment status and whether or not they...

4. A 2012 Gallup poll surveyed Americans about their employment status and whether or not they have diabetes. The survey results indicated that 717 of the 47,774 employed (full or part time) and 146 of the 5,855 unemployed 18-29 year olds have diabetes. (a) If you suspect that that having diabetes and being unemployed might be related somehow, then what is the null and alternative hypothesis?

(b) What is the pooled proportion?

(d) What is the Z-score?

(e) What is the p-value?

(f) What is the decision?

(g) What is the conclusion?

(h) In this context, what does the p-value represent?

Solutions

Expert Solution

please like ??

orchestra answered 1 year ago

Next > < Previous

Related Solutions

According to a Gallup Poll, 18% of Americans surveyed said that they had gained “a lot”...

According to a Gallup Poll, 18% of Americans surveyed said that they had gained “a lot” of weight in the past five years. Assume that this result is true for the current population of Americans. A random sample of 14 Americans is selected. a.Find the probability that in a random sample of 14 Americans, the number who will say they have gained “a lot” of weight in the past five years is at most 2. Draw a distribution b. Find...

In 2001, a Gallup Poll surveyed 1016 households in the U.S. about their pets. Of those...

In 2001, a Gallup Poll surveyed 1016 households in the U.S. about their pets. Of those surveyed, 599 said they had at least one dog or cat as a pet. Find and interpret the 90% confidence interval (z*=1.645) for the population proportion. Round your answer to 3 decimal places.

A common Gallup poll question asks Americans whether they would like to see handguns banned. A...

A common Gallup poll question asks Americans whether they would like to see handguns banned. A recent poll indicated that 27% of those polled by Gallup said “Yes.” Calculate the margin of error for that figure, assuming a 95% confidence level and a sample size of 1,000 respondents. (Input the number in percent form with 1 decimal place and no percent sign)

A Gallup poll found that 493 of 1050 adult Americans believe it is the responsibility of...

A Gallup poll found that 493 of 1050 adult Americans believe it is the responsibility of the federal government to make sure all Americans have healthcare coverage. Construct and interpret a 90% confidence interval for the proportion of adult americans who believe it is the federal governments responsibility to make sure all americans have coverage? What does this interval suggest?

A Gallup Poll showed that 44% of Americans are satisfied with the way things are going...

A Gallup Poll showed that 44% of Americans are satisfied with the way things are going in the United States. Suppose a sample of 25 Americans are selected. Based on this information, generate a cumulative binomial probability. Binomial n 25 p 0.44 xi P(X<=xi) 0 0.0000 1 0.0000 2 0.0001 3 0.0007 4 0.0031 5 0.0112 6 0.0323 7 0.0773 8 0.1569 9 0.2750 10 0.4235 11 0.5826 12 0.7285 13 0.8431 14 0.9203 15 0.9647 16 0.9866 17 0.9956...

A Gallup Poll showed that 44% of Americans are satisfied with the way things are going...

A Gallup Poll showed that 44% of Americans are satisfied with the way things are going in the United States. Suppose a sample of 25 Americans are selected. Find the probability that no less than 7 Americans are satisfied with the way things are going. Find the probability that exactly 15 Americans are not satisfied with the way things are going. Find the probability that the number of Americans who are satisfied with the way things are going differs by...

A Gallup poll was conducted in 2010 in which they surveyed people all over the world...

A Gallup poll was conducted in 2010 in which they surveyed people all over the world and found that 44% of adults in the world believe that global warming is a serious threat to themselves and their families. Assume that this is the population proportion of adults worldwide who believe global warming is a threat (p= 0.44), and suppose we repeatedly select random samples of size 250, and ask them the same question. (a) Find the mean, and standard error,...

A recent Gallup poll asked 1006 Americans, “During the past year, about how many books, either...

A recent Gallup poll asked 1006 Americans, “During the past year, about how many books, either hardcover or paperback, did you read all or part of the way through?” Results of the survey indicated that x ¯ = 13.4 books and s = 16.6 books. Construct a 99% confidence interval for the true mean number of books Americans read either all or part of during the past year.

2. According to a Gallup poll conducted in 2008, 78.3% of Americans felt satisfied with the...

2. According to a Gallup poll conducted in 2008, 78.3% of Americans felt satisfied with the way things were going in their personal lives. A researcher wonders of the percentage satisfied is lower today. To find out, the researcher surveys a random sample of 1,173 Americans, and finds that 895 feel satisfied with the way things are going in their personal lives. The researcher wishes to test the null hypothesis at a significance level of 0.05. (a) Conduct a large...

A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 387 women...

A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 387 women and 359 men were independently and randomly selected, and that 242 women and 202 men chose the state of the economy as their biggest concern. Can we conclude that the proportion of women (p1), choosing the state of the economy as their biggest concern, exceeds the proportion of men (p2)? Use a significance level of α=0.01 for the test. Step 1: Choose the correct alternative...

Subjects