A 2005 study looked at a random sample of 800 Canadians between the ages of 18 and 24 years, and asked them the following yes or no question: "When nothing is occupying my attention, the thing I do is reach for my phone." 77% responded yes to this question. 1) Using the above scenario, construct and interpret a 90% confidence interval. 2) Using the above scenario, test the claim and draw the appropriate conclusion at a- 0.05 that more than 75% of all Canadians in this age group would respond "ves" to the given statement.

A 2005 study looked at a random sample of 800 Canadians between the ages of 18 and 24 years, and asked them the following yes or no question: "When nothing is occupying my attention, the thing I do is reach for my phone." 77% responded yes to this question. 1) Using the above scenario, construct and interpret a 90% confidence interval. 2) Using the above scenario, test the claim and draw the appropriate conclusion at a- 0.05 that more than 75% of all Canadians in this age group would respond "ves" to the given statement.

Name: Please show how you would do this on excel, thank you A 2005 study loo
Uploaded: 2024-03-20T07:07:26.000Z
Channel: Bartleby
Description: Please show how you would do this on excel, thank you A 2005 study looked at a random sample of 800 Canadians between the ages of 18 and 24 years, and asked them the following yes or no question: "When nothing is occupying my attention, the firstthin

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

See similar textbooks

Similar questions

What is meant by the sample space of an experiment?
To assess the effectiveness of a kindergarten-readiness program, 15 children from a random sample were each given a diagnostic assessment before beginning the program and a follow-up assessment after completing the program. For each child, the difference in the score points between the two assessments was calculated and used to create the 95 percent confidence interval (20.1,23.9)(20.1,23.9). Assuming all conditions for inference are met, which of the following is a correct interpretation of the interval? A) For all children in the program, 95 percent of the children will have a mean difference in scores of between 20.1 points and 23.9 points. B) There is a 0.95 probability that the mean difference in scores for all children in the sample is between 20.1 points and 23.9 points. C) There is a 0.95 probability that the mean difference in scores for the children in the program is between 20.1 points and 23.9 points. D) We are 95 percent confident that the mean difference in scores for…
An epidemiologist is worried about the prevalence of the flu in East Vancouver and the potential shortage of vaccines for the area. She will need to provide a recommendation for how to allocate the vaccines appropriately across the city. She takes a simple random sample of 339 people living in East Vancouver and finds that 40 have recently had the flu. For each of the following statements, specify whether the statement is a correct interpretation of the 95% confidence interval for the true proportion of East Vancouver residents who have recently had the flu. A. 11.80% (40/339) of East Vancouver residents have recently had the flu. ? true false B. There is a 95% probability that the true proportion of East Vancouver residents who have recently had the flu equals 40/339. ? true false C. If another random sample of 339 East Vancouver residents is drawn, there is a 95% probability that the sample proportion of East Vancouver residents who have recently had the flu equals 40/339. ?…
A research group studying cell phone habits asked the question “Do you ever use your cell phone to make a payment at a convenience store?” to people selected from two random samples of cell phone users. One sample consisted of older adults, ages 35 years and older, and the other sample consisted of younger adults, ages 18 years to 34 years. The proportion of people who answered yes in each sample was used to create a 95 percent confidence interval of (0.097,0.125)(0.097,0.125) to estimate the difference (younger minus older) between the population proportions of people who would answer yes to the question. Which of the following is the best description of what is meant by 95 percent confidence? In repeated random sampling with the same sample size, approximately 95% of the sample proportions from the younger group will be between 0.097 and 0.125 greater than the sample proportion from the older group. A In repeated random sampling with the same sample size,…
The research group asked the following question of individuals who earned in excess of $100,000 per year and those who earned less than $100,000 per year: "Do you believe that it is morally wrong for unwed women to have children?" Of the 1,205 individuals who earned in excess of $100,000 per year, 712 said yes; of the 1,310 individuals who earned less than $100,000 per year, 693 said yes. Construct a 95% confidence interval to determine if there is a difference in the proportion of individuals who believe it is morally wrong for unwed women to have children.The lower bound is _______The upper bound is________. (Round to three decimal places as needed.)
Suppose that a safety group surveyed 1,100 drivers. Among those surveyed, 65% said that careless or aggressive driving was the biggest threat on the road, and 25% said that cell phone usage by other drivers was the driving behavior that annoyed them the most. Based on these data and assuming that the sample was a simple random sample, construct and interpret a 95% confidence interval estimate for the true proportion in the population of all drivers who are annoyed by cell phone users. The confidence interval estimate is ??––––––??> (Round to three decimal places as needed. Use ascending order.) Interpret the confidence interval estimate. A. There is a 0.95 probability that the population proportion of drivers who are annoyed by cell phone users is in the interval. B. There is 95% confidence that the population proportion of drivers who are annoyed by cell phone users is in the interval. C. There is 95% confidence that the population proportion…
In an experiment of normal body temperatures in degrees Fahrenheit, 6 males ages 25-40 were given a random temperature check. The results were as follows: 97.1 99.0 98.2 98.9 98.1 99.4 a. Construct and interpret a 95% Confidence Interval for the average normal body temperature of males ages 25-40. b. Construct and interpret a 95% Prediction Interval for the next temperature taken. c. The average normal body temperature is generally accepted as 98.6 °F. Given the above data, should scientists reconsider this general statement? Use ? = 0.05.
Provide an explanation as to why it would be very unlikely that a different sample of size n=30 would produce the same confidence interval.
From a simple random sample of 400 of the 1,395 colleges in our population, it was found that business statistics was a two-semester course in 141 of the sampled colleges. Estimate the proportion of all colleges for which the course is two semesters long, and find a 90% confidence interval.
According to the same Pew Internet study, 8% of those with broadband connections are using fixed wireless. Let p be the proportion of broadband users who use fixed wireless, and consider the hypotheses: Ho: p = 0.08 Ha: p ≠ 0.08 If the p-value is 0.103 and we fail to reject H0, based upon the same data, which confidence interval would be the 95% confidence interval for p? a. (0.068, 0.082) b. (0.068, 0.078) c. (0.098, 0.112) d. (0.085, 0.096)
The production manager in an automobile plant is concerned with the number of cars that do not pass the final quality control inspection. In the last two hours he noted that in a sample of 120 cars only 92 were acceptable. The lower and upper limit of a 95% confidence interval for the true percentage of all cars that would not pass the final quality control inspection would be:
The research group asked the following question of individuals who earned in excess of $100,000 per year and those who earned less than $100,000 per year: "Do you believe that it is morally wrong for unwed women to have children?" Of the 1 comma 205 individuals who earned in excess of $100,000 per year, 710 said yes; of the 1 comma 310 individuals who earned less than $100,000 per year, 695 said yes. Construct a 95% confidence interval to determine if there is a difference in the proportion of individuals who believe it is morally wrong for unwed women to have children. The lower bound is nothing