Question

A researching team conduct a survey, where out of 76 Americans surveyed, only 2 had seen...

A researching team conduct a survey, where out of 76 Americans surveyed, only 2 had seen or sensed the presence of an angel. Test the claim that 13% of Americans have seen or sensed the presence of an angel. Use α = 0.05

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

Homework Answers

Answer #1

Z is the standard normal variate.

P(Z>2.6877) is calculated using standard normal table.

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
Using TI 83 Calculator Only Show All Steps 1. The average work week for engineers in...
Using TI 83 Calculator Only Show All Steps 1. The average work week for engineers in a start-up company is believed to be about 60 hours. A newly hired engineer hopes that it’s shorter. She asks 10 engineering friends in start-ups for the lengths of their average work weeks. Based on the results that follow, should she count on the average work week to be shorter than 60 hours? Data (length of average work week): 70; 45; 55; 60; 65;...
A poll done for an organization found that 13% of Americans have seen or sensed the...
A poll done for an organization found that 13% of Americans have seen or sensed the presence of an angel. A contingent doubts that the percent is really that high. It conducts its own survey. Out of 78 Americans surveyed, only two had seen or sensed the presence of an angel. As a result of the contingent's survey, would you agree with the organization's poll? Conduct a hypothesis test at the 5% level. Note: If you are using a Student's...
In a survey on supernatural experiences, 724 of 4003 adult Americans surveyed reported that they had...
In a survey on supernatural experiences, 724 of 4003 adult Americans surveyed reported that they had seen or been with a ghost. (a) What assumption must be made in order for it to be appropriate to use the formula of this section to construct a confidence interval to estimate the proportion of all adult Americans who have seen or been with a ghost? We need to assume that there are only 724 adult Americans.We need to assume that the 4003...
1.Simplify (n+1)! / (n-1)! 2..A survey found that 10% of Americans believe that they have seen...
1.Simplify (n+1)! / (n-1)! 2..A survey found that 10% of Americans believe that they have seen a UFO. For a sample of 10 people, find the probability that exactly 5 people believe that they have seen a UFO. Use Table B or the binomial probability formula.
out of a sample of 1031 Americans surveyed, 912 of them own a television a) is...
out of a sample of 1031 Americans surveyed, 912 of them own a television a) is there a significant evidence at a=0.05 to conclude the majority of Americans (>50%) own a television? i) verify the normality condition necessary for the hypothesis testing. ii) step 1: Ho:________ H1: ______________ iii) step 2: a=________ iv) step 3: calculate test statistic: v) now, use your calculator to find the p-value. vi) are you going to reject or fail to reject the hypothesis claim?...
5. A survey conducted at a Midwestern university and involving 1,500 students found that 68% had...
5. A survey conducted at a Midwestern university and involving 1,500 students found that 68% had taken out a student loan to help pay for the cost of their college education. A similar study at a southeastern university in which 2,000 students were surveyed found that 47% had taken out a student loan. a.Develop and interpret a 95% confidence interval estimate for the difference in the proportions of students who have loans at these two universities. b.Using an alpha level...
1) In a survey conducted by a website, employers were asked if they had ever sent...
1) In a survey conducted by a website, employers were asked if they had ever sent an employee home because they were dressed inappropriately. A total of 2761 employers responded to the survey, with 974 saying that they had sent an employee home for inappropriate attire. In a press release, the website makes the claim that more than one-third of employers have sent an employee home to change clothes. Do the sample data provide convincing evidence in support of this...
A research team is hired to investigate the prevalence of periodontal disease in a rural county...
A research team is hired to investigate the prevalence of periodontal disease in a rural county with a low average socio-economic status. The team is given the task of surveying the area, and providing a brief examination of participants to correctly identify cases of periodontal disease and estimate an overall prevalence. If the team identifies an overall prevalence of above 25%, the sponsoring organization is to initiate an active campaign promoting healthy dental practice. Out of 150 participants surveyed, 30...
The report "Digital Democracy Survey"† describes a large national survey. In a representative sample of Americans...
The report "Digital Democracy Survey"† describes a large national survey. In a representative sample of Americans ages 14 to 18 years, 45% indicated that they usually use social media while watching TV. Suppose that the sample size was 500. (a) Is there convincing evidence that less than half of Americans ages 14 to 18 years usually use social media while watching TV? Use a significance level of 0.05. State the appropriate null and alternative hypotheses. H0: p = 0.5 versus...
A recent article in the Daily Express newspaper reported that only one in four new college...
A recent article in the Daily Express newspaper reported that only one in four new college graduates are able to obtain a job. The reason stated is that there is an overabundance of college graduates and a recession. A survey of 150 college graduates revealed that 47 had jobs. Using a significance level of α=0.01, conduct a hypothesis test to examine if a larger proportion of college graduates have jobs than the newspapers claim. (2 decimal places) 1- State the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT