Question

Large Sample Proportion Problem.  Surveys were conducted in multiple countries and respondents were asked if they felt...

Large Sample Proportion Problem.  Surveys were conducted in multiple countries and respondents were asked if they felt political news was reported fairly. The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly. Suppose we construct a 99% confidence interval and the upper and lower bounds are .4293 to .5107.

What can I conclude about a two-tailed hypothesis test where Ho: P=.5 and alpha is .01?

Group of answer choices

I don’t have enough information to make a conclusion.

I would be able to reject the Null Hypothesis that P=.5, but only for a one-tailed test.

I would be able to reject the Null Hypothesis that P = .5

I would fail to reject the Null Hypothesis that P = .5

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Since , the 99% confidence interval estimate for the population proportion is ( 0.4293 , 0.5107 )

Here , The hypothesis is given by ,

Hypothesis : VS  

Rejection rule : If the value does not lies in the given confidence interval , then reject Ho ,accept otherwise.

Decision : Here , the value lies in the given 99% confidence interval

Therefore , fail to reject the Null hypothesis that

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
20. Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if...
20. Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if they felt political news was reported fairly. The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly. Suppose we want to determine if the proportion for the U.S. is below .50 for an alpha level of .05. What is the conclusion of my test? A. I would reject Ho: P=.5 because the...
1. Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the...
1. Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266 high school students surveyed, 970 admitted to smoking marijuana at least once.  A study done 10 years earlier estimated that 45% of the students had tried marijuana. We want to conduct a hypothesis test to see if the true proportion of high school students who tried marijuana is now less than 45%.   Use alpha = .01. What is the conclusion for this test? A)Based...
Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266...
Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266 high school students surveyed, 970 admitted to smoking marijuana at least once.  A study done 10 years earlier estimated that 45% of the students had tried marijuana. We want to conduct a hypothesis test to see if the true proportion of high school students who tried marijuana is now less than 45%.   Use alpha = .01. What is the conclusion for this test? Group of...
Multiple Choice Questions Q1. In a hypothesis test, Beta is best described by P (Type I...
Multiple Choice Questions Q1. In a hypothesis test, Beta is best described by P (Type I error) P (Test Stat>|Observed Stat|) Power P (Type II error) Q2. Which alternative hypothesis would I need to double the p-value in a test for the mean? No feasible answer Lower tailed alternative Two sided alternative Upper tailed alternative Suppose our p-value is .184. What will our conclusion be at alpha levels of .10, .05, and .01? We will reject Ho at alpha=.10 or...
How do I get the P value for this problem? ... In a General Social Survey,...
How do I get the P value for this problem? ... In a General Social Survey, respondents working full time or part time reported how many hours they worked in the previous week at all jobs. The random sample of 1,729 produced a mean of 41.8 hours with a standard deviation of 14.6 hours. Using these data what would you conclude in a test of the following hypothesis? Ho: M = 40 hours Ha: M > 40 hours The teacher...
Both before and after a recent earthquake, surveys were conducted asking voters which of the three...
Both before and after a recent earthquake, surveys were conducted asking voters which of the three candidates they planned on voting for in the upcoming city council election. Has here been a change since the earthquake? You are conducting a Test of Independence for the claim that there is an association between the earthquake and the voter support at α=0.05α=0.05. The following table summarize the result of the survey. Perez Chung Stevens Before 38 27 37 After 22 17 27...
Both before and after a recent earthquake, surveys were conducted asking voters which of the three...
Both before and after a recent earthquake, surveys were conducted asking voters which of the three candidates they planned on voting for in the upcoming city council election. Has here been a change since the earthquake? You are conducting a Test of Independence for the claim that there is an association between the earthquake and the voter support at α=0.05α=0.05. The following table summarize the result of the survey. Perez Chung Stevens Before 27 40 21 After 19 38 30...
You have graduated an joined a small consulting firm which specializes in employee satisfaction surveys. The...
You have graduated an joined a small consulting firm which specializes in employee satisfaction surveys. The firm uses a Likert scale with responses from 1 to 7. You are examining the data for one of your largest clients. Each year your firm generates the proportion of 6 and 7 scores to the question, " I would recommend working at this company to my friends, relatives and neighbors." Over the past the proportion in the 6 and 7 category has averaged...
We are studying One Sample tests of Hypothesis. My problem/"story" reads as: From the class surveys,...
We are studying One Sample tests of Hypothesis. My problem/"story" reads as: From the class surveys, a facilitator finds that 68 of 98 students who have taken a particular math course were born in AZ. The college is interested in determining if people who were born Outside of AZ need to be targeted for a marketing campaign. Analyze this information using the five step hypothesis testing process to test the claim that greater than 60% of ASU students were born...
My question is on a practice textbook problem - and generally when comparing proportions and you...
My question is on a practice textbook problem - and generally when comparing proportions and you get a negative test statistic. Why is this compared to the –ve critical value. For example in the scenario below. The textbook answer says Reject H0 since −2.86 < −2.58, p = .0042 Using R, the p-value is less than 0.05 so I would reject H0 . However, calculating by hand,  normally I would compare the test statistic to a critical value of 2.58 and...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT