You are told that a survey produced a 90% confidence interval for the mean spent on utilities per month in the New York area was ($215.56, $243.90). Can you calculate the sample size used to determine this confidence interval? Explain why or why not.

You are told that a survey produced a 90% confidence interval for the mean spent on utilities per month in the New York area was ($215.56, $243.90). Can you calculate the sample size used to determine this confidence interval? Explain why or why not.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 4AGP

See similar textbooks

Related questions

Q: You wanted to know how long on average a business student at your university studies per night. You…

A: Given data is 2,1,3,2,4,1,0,3,2,4sample size(n)=10

Q: You are interested in finding a 95% confidence interval for the mean number of visits for physical…

A: Given,mean(x¯)=13.6standard deviation (s)=9.1918sample size(n)=10degrees of…

Q: describe how you would construct a 90% confidence interval to estimate the population mean age for…

A: Here, we need to discuss the steps involved in constructing the 90% confidence interval to estimate…

Q: Over the break, you do some reasearch. In a random sample of 250 U.S. adults, 56% said they ate…

Q: When you construct a 95% confidence interval, what are you 95% confident about?

A: Confidence intervals: Confidence intervals are the limits for the point estimate of population…

Q: Which of the following illustrates a confidence level? a. 95% b.12.5…

Q: You plan to construct a 90% confidence interval for the proportion of all middle school students who…

Q: researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 520…

Q: A survey of 26 individuals found that they spent an average of $39.21 on exercise attire for the…

A: Confidence interval is an inference process which is used to estimate the population parameter. The…

Q: 4. Computers in some vehicles calculate various quantities related to performance. One of these is…

A: From the provided sample observations, Mean miles per gallon (μ)=∑Xin ,where Xi is the…

Q: Remember the formula for the 80% confidence interval of a single proportion(see picture) : what is…

Q: If you have a 99% confidence that a population proportion is in the interval from a to b, what does…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: You are trying to estimate the percent of people in California who have a college degree. You…

A: According to the given information in this question We need to identify that from the given…

Q: USE THE INFORMATION BELOW TO ANSWER QUESTIONS 4 THRU 6 In 2020 researchers took random samples to…

A: Givenconfidence interval is (0.013 , 0.049)conficence level = 96%

Q: A national survey of 1000 adult citizens of a nation found that 18% dreaded Valentine's Day. The…

A: Solution: Given information: n= 1000 Sample size p^= 0.18 Sample proportion of adult of citizens…

Q: State the equation for the 95% confidence interval?

A: The equation for confidence interval can be stated as: Here x̅ is the sample mean, Zα/2 is the…

Q: A 95% confidence interval is narrower than a 90% confidence interval for the same data set. O True O…

A: We have to find given probability.

Q: Which of the common confidence levels (90%, 95%, or 99%) would you prefer to use if you wanted to…

A: Introduction: The “smallest” confidence interval implies the confidence interval with the shortest…

Q: Use the sample data in Example #1 (picture) and a technology tool to construct 75%, 85%, and 99%…

A: Given:

Q: Angela is trying to figure out the sample size for the data set she wants to collect. She is…

A: The larger the sample size, the less will be the value of standard error. Therefore, the range of…

Q: Suppose you plan to conduct among 2,500 Grade 12 students enrolled in the stem Track. How many…

Q: Problem: Use the data given in Example #1 to construct a 95% confidence interval for the mean number…

A: Given data:

Q: you take a sample in equal 25 of test scores from a population. The sample mean is 38, and the…

Q: At one large college, 1867 out of the 2500 students surveyed said they plan to take another science…

A: The known values are, p^=1,867/2,500=0.7468, n=2,500. Using standard normal table, the critical…

Q: Find the confidence level and α for an 80% confidence interval.

A: Given confidence level =80%

Q: At one large college, 660 out of the 1500 students surveyed said they plan to take another science…

A: Given that, x=660,n=1500 The sample proportion is, Critical values: By using the standard normal…

Q: You are told that a 95% confidence interval for the population mean is 17.3 to 24.5. If the…

A: we have to identify true or false.

Q: We would like to create a confidence interval for the mean. Which of the following would produce the…

A: Margin of error = Width/2

Q: The 99% confidence interval for the proportion of college students that prefer to work for a large…

A: We have given that that prefer to work for a large company is Sample size n =1500 Sample proportion…

Q: Suppose you needed to form a 92% confidence interval for a population mean. What z value would you…

Q: What statistical test should she use to analyze the data?

A: Answer: From the given data We use Chi square test of Independence test to analyze the data

Q: For what type of variable does it make sense to construct a confidence interval about a population…

A: Qualitative variable: A variable which cannot be measured in numerically is known as a Qualitative…

Question

You are told that a survey produced a 90% confidence interval for the mean spent on utilities per month in the New York area was ($215.56, $243.90). Can you calculate the sample size used to determine this confidence interval? Explain why or why not.

Expert Solution