Home Internet Access In a recent year, a study found that 76% of adults ages 18-29 had internet access at home. A researcher wanted to estimate the proportion of undergraduate college students (18-29 years) with access, so she randomly sampled 182 undergraduates and found that 160 had access. Estimate the true proportion with 99% confidence. Round Intermediate answers to five decimal places. Round your final answer to one decimal place. O%

Home Internet Access In a recent year, a study found that 76% of adults ages 18-29 had internet access at home. A researcher wanted to estimate the proportion of undergraduate college students (18-29 years) with access, so she randomly sampled 182 undergraduates and found that 160 had access. Estimate the true proportion with 99% confidence. Round Intermediate answers to five decimal places. Round your final answer to one decimal place. O%

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

Similar questions

You are testing the claim that the proportion of men who own cats is significantly different than the proportion of wormen who own cats. You sample 160 men, and 30% own cats. You sample 140 women, and 45% own cats. Find the test statistic, rounded to two decimal places. Submit Question
The response rate of a survey is the proportion of all people who were selected but did not complete the survey. True False
A study was conducted to examine the impact of speaking in public on college students. A class of 15 statistics students participated in the study. At the beginning of a lecture the students recorded their systolic blood pressure. During the lecture the instructor called on each student to stand and answer questions about topics in the lecture. After speaking the students once again recorded their blood pressure. The resulting values are given below along with summary statistics. before 107 123 128 125 136 108 130 113 105 136 146 138 108 149 132 after 141 142 146 136 144 111 132 114 103 133 140 130 100 133 113 difference -34 -19 -18 -11 -8 -3 -2 -1 2 3 6 8 8 16 19 before after difference mean 125.6 127.9 -2.267 st dev 14.53 15.45 14.03 Does this information indicate that blood pressure increased because of speaking? Conduct an appropriate hypothesis test and show appropriate steps. Let μ1 mean systolic blood pressure before speaking in public, and μ2 mean…
Help please 3
See the graph of data below to answer the following question Obtain a 95% confidence interval for the difference between the mean rates of return. Interpret the interval.
cant figure out where im going wrong .
It is thought that 12% of all students taking a particular course received a grade of A. In a sample of 155 students, it is found that 21 made an A. What is the test statistic for testing the true proportion is 12%?
show complete solutions
quest 22 1/2
The 2004 General Social Survey asked a random sample of 977 adult Americans how often they feel rushed, with three options to choose from: always, sometimes, and never. The sample result was that 304 of the 977 people responded "always." Calculate the value of the test statistic by hand. Round the sample proportion and the hypothesized value of the proportion to THREE decimal places. Round the final answer to TWO decimal places.
. How high are the levels for the highest (top) 4.8% of all children? Z- score = Answer =
Indicate the statistical test you would conduct. Respondents in a survey of 1,000 households were asked about their travel history. Specifically, they were asked how often they have been to Europe in the past five years (using a ratio scale). People were also classified by interest type (art-lovers, food-lovers, or sports-lovers). The question is whether interest type influences travel history. Two-sample t-test Paired sample t-test One-way ANOVA none of those QUESTION 6 What is the corresponing alternative hypothesis for the scenario in question #5? The three interest types do not differ with regard to the number of times they have been to Europe in the last five years. Interest type and travel to Europe are not related. The number of times people have been to Europe does not depend on interest type. The three interest types differ with regard to the number of times they have been to Europe in the last five years.