In a survey of 3250 adults, 1448 say they have started paying bills online in the last year. (a) Construct a 99% confidence interval for the population proportion. (b) Interpret the results. Click here to view an example for constructing a confidence interval for the population proportion Click here to watch a tutorial on how to use the Show Work window features.

In a survey of 3250 adults, 1448 say they have started paying bills online in the last year. (a) Construct a 99% confidence interval for the population proportion. (b) Interpret the results. Click here to view an example for constructing a confidence interval for the population proportion Click here to watch a tutorial on how to use the Show Work window features.

Name: In a survey of 3250 adults, 1448 say they have started paying bills o
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: In a survey of 3250 adults, 1448 say they have started paying bills online in the last year.(a) Construct a 99% confidence interval for the population proportion.(b) Interpret the results.Click here to view an example for constructing a confidence i

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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: Can you please calculate the 95% confidence interval for this problem

A: From the obtained results, the mean of the difference is -2.1 and the standard deviation of the…

Q: A sample of 60 people who were chosen for a sample had an average IQ score of 105. If the population…

A: From the given, x¯ (mean IQ score from sample)=105n (sample size)=60σ (population SD of IQ…

Q: When 99% confidence interval is calculated instead of a 95% confidence interval with the same sample…

Q: Find the critical t value to use in making a 99% confidence interval for a mean if the sample size…

A: Solution-: Given: n=7,α=0.01 We find the critical t- value to use in making a 99% C.I. for a mean

Q: The mean hours of worked for United Airlines pilots is 46 hours/month based upon a sample of 25…

A: Given: Sample size, n=25 Sample mean, X=46 hours Sample standard deviation, s=3 hours The level of…

Q: What is a Confidence Level? what is one example of the use of the Confidence Interval?

A: A level of confidence refers to the percentage of all possible samples which the true population…

Q: When calculating the confidence interval for a population mean, which distribution is used?

A: Confidence interval for mean: When the sample size is large (n>30) and population variance (or…

Q: Find a credible journal article or website where confidence intervals were used to make informed…

A: From the given information we find the solution.

Q: Generally speaking, what is the difference between a confidence interval and a prediction

Q: (b) Assume that the mean score for students taking traditional courses is 5.60. A college that…

A: The mean score for students taking traditional curses is 5.60.

Q: Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250…

A: According to the given information,Sample size, n = 250Number of successes, x = 98Confidence level,…

Q: What is the upper bound of the confidence interval? A 98% confidence interval for the data: 25, 38,…

A: We have given data, X 25 38 62 45 61 38 21 42 31 35 The confidence level is 1-α=0.98.

Q: Find the critical t value to use in making a 98% confidence interval for a mean if the sample size…

Q: margin of error for a 95% confidence interval is approximately 2 times the standard error. True…

A: The standard error can be calculated as: SE=σnorSE=sn Here, σ or s = Standard deviation n = Sample…

Q: If n=540 and (p-hat) = 0.13, construct a 99% confidence interval. Give your answers to three…

A: We have given that, Sample size (n) = 540 Sample proportion (p-hat) = 0.13 Then, We will find the…

Q: oning in

A: To determine if the confidence interval supports the claim, check if the claimed population…

Q: "Calculating a confidence interval provides you with an indication of how reliable your sample mean…

A: The degree of confidence is the likelihood that the confidence interval will include the true mean…

Q: What does Level of Confidence indicates?

Q: If n=120 and p (p-hat) =0.31, find the margin of error at a 99% confidence level Give your answer to…

A: Sample size, n = 120 p^ = 0.31 99% confidence level

Q: Explain when you would use the z value or the t-value to calculate a confidence interval

A: Z value: The z value is used for finding the confidence intervals for single population proportion,…

Q: What is the 95% confidence interval for the slope? The table contains a random sample of seven…

A: The table contains a random sample of seven skyscrapers in Chicago. Let x=number of stories And…

Q: Suppose we take a survey of 400 students and ask how much they study per week. The result is an…

A: The 100 (1 – α)% confidence interval provides an interval estimation of the required population…

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

A: From the provided information, Sample proportion (p̂) = 0.24 Margin of error for a 95% confidence…

Q: A recent study by the McGraw-Hill company showed that 61% (1621) of college students use their…

A: Given, Proportion of college students use their smartphones for study = 0.61Total number of students…

Q: What is the effect on a confidence interval if one decreases both sample size and the level of…

Q: List below are the speeds (mi/h) measured from the southbound traffic on I-280, the speed limit is…

A: Given data is62,61,61,57,61,54,59,58,59,69,60,67

Q: Can you please write B up in writing as it is incorrect but I think it's because it's been converted…

A: f(x) = 3(x-1)^2, 0<x<1

Q: Given this data: {4, 5, 8, 11, 16, 8}, (a) Find the 90% confidence interval for the mean. (b)…

Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

Topic Video

Question

In a survey of 3250 adults, 1448 say they have started paying bills online in the last year.
(a) Construct a 99% confidence interval for the population proportion.
(b) Interpret the results.
Click here to view an example for constructing a confidence interval for the population proportion
Click here to watch a tutorial on how to use the Show Work window features.
Show your work in the
pop-up show work window. After you complete your work in the show work window, click YES below to verify that you have
El
shown your work and go on to the next question. You must show each step of your work to receive maximum credit.
CI
O Yes
O No
Micr
Ed
ta...
Click to select your answer.
ts.pdf
Show Work

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

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Proportions$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

What is a confidence interval and how do we calculate it?
What is a confidence interval in statistics?
Why are confidence intervals important and what do they mean to a study?
What is the effect on the size of the confidence interval if a T score is used instead of a Z score? OIt has no effect on the interval. OIt causes the interval to be bigger. OIt causes the interval to be smaller.
Do Construct a confidence interval on a slope?
A 90% confidence interval for a population mean is (10, 20). What is the margin of error of the interval?
Explain what happens when finding the margin of error if all stays the sameexcept that the confidence interval increases.
I want to estimate the population mean number of times that adults eat breakfast in a week. I spoke with 12 coworkers, and the numbers were 7, 5, 5, 7, 2, 3, 7, 5, 1, 0, 7, 6. Calculate a 95% confidence interval for the population mean (round 3 decimal places).
Suppose you construct a 90% confidence interval for the true population mean GPA of students at Taft College. If all of the sample values remained constant and you decreased the confidence level, what would happen to the width of your confidence interval? Edit View Incort
If the confidence interval would only contain positive values, what would be your interpretation of this 95% confidence interval regarding this diet program?
If n=230 and p (p-hat) = 0.61, construct a 95% confidence interval. Give your answers to three decimals
I chose Option 1 for this week’s discussion post. I want to estimate the population mean number of times adults between the ages of 30 and 45 went to the grocery store in the last week. I spoke with 12 adults and asked them how many times they went to the grocery store in the last week. The results were 0, 2, 2, 7, 5, 1, 0, 3, 1, 1, 4, and 3. Now calculate a 95% confidence interval for the population mean. (Round to three decimal places)