Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval for a sample of size 148 with 112 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval for a sample of size 148 with 112 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: Find the critical value for the population mean if there are 756 cats in a sample and you want a 91%…

Q: In a survey of 3001 adults, 1486 say they have started paying bills online in the last year.…

A: Assuming that the number of people paying bills online has a binomial distribution with n=3001, and…

Q: In a survey of 2865 adults, 1413 say they have started paying bills online in the last year.…

Q: A researcher found a 95% confidence interval for the proportion of college students who believe in…

Q: Suppose we wanted to estimate the average amount of sleep (in hours) a college student gets a night.…

A: Confidence interval : Confidence interval is a range of values it contains the true population…

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: In a survey of 2274 adults, 749 say they believe in UFOs. Construct a 99% confidence interval for…

Q: In a survey of 2195 adults in a recent year, 1454 say they have made a New Year's resolution.…

Q: Out of 400 people sampled, 32 had kids. Based on this, construct a 95% confidence interval for the…

A: Solution: Let X be the number of people had kids and n be the sample number of people. From the…

Q: Suppose you calculate a 99% confidence interval to be: 13.05 to 20.75. Determine the margin of error

A: Given data: The given upper limit is b=20.75. The given lower limit is a=13.05. The expression for…

Q: In a survey of 3185 adults, 1455 say they have started paying bills online in the last year.…

Q: Out of 200 people sampled, 42 had kids. Based on this, construct a 95% confidence interval for the…

A: For 95% confidence intervalα=1-CI=1-0.95=0.05So, zα2=z0.052=z0.025=1.96

Q: In a survey of 2313 adults, 714 say they believe in UFOs. Construct a 90% confidence interval for…

A: Given, In a survey of 2313 adults, 714 say they believe in UFOs. n=2313 x=714 Sample proportion:…

Q: magine that you conduct a study and estimate that the prevalence of hypertension among employees of…

A: It is given that the estimated prevalence is 24%.

Q: In a survey of 3260 adults, 1456 say they have started paying bills online in the last year.…

A: Givenn=3260x=1456p^=xn=14563260=0.4466

Q: In a survey of 2000 adults in a recent year 1404, say they have made a New Year's resolution.…

A: n=2000x=1404

Q: n a survey of 4026 adults, 708 oppose allowing transgender students to use the bathrooms of the…

Q: Assume that a sample is used to estimate a population proportion. Find the 95% confidence interval…

Q: when 282 college students are randomly selected and surveyed, it is found that 109 own a car. find a…

A: It is given that sample size (n) is 282 and x is 109.

Q: Construct a 99% confidence interval for the population proportion. Interpret the results.

Q: To assess the proportion of the readers of a magazine being professional, a random sample of 1000…

A: Given that the random sample of 1000 readers is selected and 660 are found to be professionals. That…

Q: 9. A survey found that out of 900 workers, 150 said they were interrupted by frank phone calls. Find…

Q: In a survey of 2693 adults, 1495 say they have started paying bills online in the last year.…

A: Given that, In a survey of 2693 adults, 1495 say they have started paying bills online in the last…

Q: In a survey of 2334 adults in a recent year,1370 say they have made a New Year's resolution.…

A: Given n=2334 X=1370

Q: 9. A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence…

A: In a survey of 280 homeless persons showed that 63 were veterans.

Q: Out of 300 people sampled, 279 had kids. Based on this, construct a 90% confidence interval for the…

Q: In a survey of 3071 adults, 1484 say they have started paying bills online in the last year.…

A: Given, Therefore, As per z-distribution table the critical value of z at 0.01 level of significant…

Q: In a survey of 2646 adults, 1401 say they have started paying bills online in the last year.…

A: Number of adults (n) = 2646 Number of adults who say they have started paying bills online in the…

Q: 90% and 95% confidence intervals for the population proportion. Interpret the results and compare…

A: Answer Favorable cases [x] = 1230The sample size [n] = 2105

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

Q: Out of 100 people sampled 48 had kids. Based on this construct a 90% confidence interval for the…

Q: In a survey of 3342 adults, 1489 say they have started paying bills online in the last year.…

A: Given Information: To construct a 99% confidence interval for the population proportion and…

Q: Find 95% confidence interval for the population mean, if the sample size is 40, the sample mean is…

Q: A survey showed 980 of 1500 adult respondents believe in global warming. Construct a 95% confidence…

Q: Construct a 95% confidence interval for the proportion of college students who say they own their…

A: Given : n=410 , X=155 , α=0.05 We want to find the 95% confidence interval for the proportion of…

Q: In a survey of 2480 golfers, 372 said they were left-handed. Construct a 92% confidence interval for…

A: GIVEN DATA : Total number of golfers are 2480, Number of left handed golfer are 372 TO FIND :…

Q: 3. In a sample of 300 people, 154 said that they watched news on television. Find the 90% confidence…

A: Given : Sample size of people (n) = 300 Let X : No. of people from sample who said they watched…

Q: Find the margin of error for the 99% confidence interval used to estimate the population…

A: The random variable X follows normal distribution. The sample size is 1100. The proportion value is…

Q: Find a 90% confidence interval for the true proportion of people that eat frog legs, if in a sample…

A: Given, n = 732 p = 0.65 1 - α = 0.90α = 0.1α2 = 0.05 To find, 90% confidence interval for the true…

Q: A recent survey of 349 people ages 18 to 29 found that 86% of them own a smartphone. Find the 99%…

A: The 99% confidence interval of the population proportion is obtained below as follows: The formula…

Q: In a survey of 2291 adults, 708 say they believe in UFOs. Construct a 90% confidence interval for…

Q: Out of 400 people sampled, 276 had kids. Based on this, construct a 90% confidence interval for the…

A: For 90% confidence intervalα=1-CI=1-0.90=0.10So, zα2=z0.102=z0.05=1.645

Q: In a survey of 3038 adults, 1448 say they have started paying bills online in the last year.…

A: Confidence Interval:The form of the confidence interval is,CI = Point estimate ± Margin of error.The…

Q: In a survey of 2947 adults, 1430 say they have started paying bills online in the last year.…

A: X = 1430 N = 2947 99% confidence level

Q: Out of 200 people sampled, 96 had kids. Based on this, construct a 99% confidence interval for the…

A: From the provided information, Sample size (n) = 200 From which 96 had kids. Confidence level = 99%…

Question

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

In a survey of 3344 adults, 1499 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results.
In a survey of 2024 adults in a recent year, 709 made a New Year's resolution to eat healthier. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals.
Out of 600 people sampled, 402 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids.
In a survey of 952 respondents, 620 of them voted in a recent election. Find a 95% confidence interval estimate for the true population proportion that voted in this election.
In a survey of 2130 adults in a recent year, 1491 say they have made a New Year's resolution. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals.
The owner of the Gas station wishes to determine the proportion of customers who use credit card. he surveys 100 customers and finds that 70 paid at the pump. Estimate the 99% .confidence interval for the population proportion
A recent survey of 1,000 people found that 90% of Americans support background checks for purchasing guns. Construct a 95 % confidence interval for the population proportion.
When 258 college students are randomly selected and surveyed, it is found that 106 own a car. Find a 99% confidence interval for the true proportion of all college students who own a car.
In a survey of 3500 adults, 1443 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results.
Out of 100 people sampled, 40 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids.
If a 95% Confidence for the Population Proportion is (0.56, 0.78), fınd its Margin of Error.
Out of 600 people sampled, 42 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids.