Research psychologists at the University of Minnesota are interested in comparing the average critical reading SAT scores for 9 sets of identical twins, one of whom was raised in a family with no other children (no siblings) and one of whom was raised in a family with other children (with siblings). The reading SAT score for each twin was recorded and then entered into Excel. Based on this paragraph of text, use the correct excel output above to answer the following question. What is the 90% confidence interval for uwith Siblings HNo Siblings? O a. (-10.5812, 122.5812) O b.(-114.4492, 2.4492) O C. (-122.5812, 10.5812) O d. (-2.4492, 114.4492) O e. None of the answers is correct

Research psychologists at the University of Minnesota are interested in comparing the average critical reading SAT scores for 9 sets of identical twins, one of whom was raised in a family with no other children (no siblings) and one of whom was raised in a family with other children (with siblings). The reading SAT score for each twin was recorded and then entered into Excel. Based on this paragraph of text, use the correct excel output above to answer the following question. What is the 90% confidence interval for uwith Siblings HNo Siblings? O a. (-10.5812, 122.5812) O b.(-114.4492, 2.4492) O C. (-122.5812, 10.5812) O d. (-2.4492, 114.4492) O e. None of the answers is correct

Name: df14Confidence Interval (in terms of No Siblings - With Siblings)Conf
Uploaded: 2024-03-20T07:06:27.000Z
Channel: Bartleby
Description: df14Confidence Interval (in terms of No Siblings - With Siblings)Confidence CoefficientLower Limit0.90-114.44922.4492Upper LimitHypothesis Test (in terms of No Siblings - With Siblings)Hypothesized ValueTest Statisticp-value (Lower Tail)p-value (Upp

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

An analyst believe that the average return of all Ghana stock was less than 4. The sample size of 36 observation with a sample mean of 3 and the population standard deviation is 2. Will the analyst reject the null hypothesis at 5% level of significance? (p-value approach)
An analyst believe that the average return of all Ghana stock was greater than 4. The sample size of 36 observation with a sample mean of 5 and the population standard deviation is 2. Will the analyst reject the null hypothesis at 5% level of significance? (p-value approach)
a sample size do we require such that the margin of error for a 95% confidence interval for the mean height of female in the U.S. is maximum 0.5inches? Assume that the population standard deviation is 4 inches.
An economist is interested in studying the incomes of consumers in a particular region. The population standard deviation is known to be $1,000. A random sample of 50 individuals resulted in an average income of $15,000. What is the upper end point in a 99% confidence interval for the average income? (2 decimal places) Answer: Upper End Point: ?
A recent study focused on the number of times men and women send a Twitter message in a day. The information summarized next. Men sample size 25 sample mean 23 population standard deviation 5 Women sample size 30 sample mean 28 population standard deviation 10 At the 0.01 significance level is there a difference in the mean number of times men and women send a Twitter message in a day? What is the value of the test statistic for this hypothesis test
Wilson Electronics claims that their new line of Plasma TVs will last for 60, 000 hours. A consumerresearch group decided to test this claim. The group randomly selects 50 TVs to test. The data fromthis sample shows that the mean life of a TV is 57, 000 hours, with a standard deviation of 1200hours.a) What is the margin of error?b) Determine the 95% confidence interval for the mean life of a TV.
A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 20 subjects had a mean wake time of 95.3 min and a standard deviation of 40.9 min. Assume that the 20 sample values appear to be from a normally distributed population and construct a 98% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is effective? Question content area bottom Part 1 Find the confidence interval estimate. enter your response here min<σ<enter your response here min (Round to two decimal places as needed.)
Working at Home Workers with a formal arrangement with their employer to be paid for time worked at home, worked an average of 19 hours per week. A random sample of 14 mortgage brokers indicated that they worked a mean of 23.1 hours per week with a standard deviation of 6.5 hours. At α=0.05, is there sufficient evidence to conclude a difference? Construct a 95% confidence interval for the true mean number of paid working hours at home. Compare the results of your confidence interval to the conclusion of your hypothesis test and discuss the implications. (a) State the hypothesis and identify the claim with the correct hypothesis. H0 H1 This hypothesis test is a one tailed/two-tailed test. (b)Find the critical value(s). Round the answer to 3 decimal places, if necessary. If there is more than one critical value, separate them with commas. Critical values: (c)Compute the test value. Round the answer to at least 3 decimal places, if necessary. t= (d)Make the decision. Reject/do not…
Workers with a formal arrangement with their employer to be paid for time worked at home, worked an average of 19 hours per week. A random sample of 13 mortgage brokers indicated that they worked a mean of 21.8 hours per week with a standard deviation of 6.5 hours. At =α0.02 , is there sufficient evidence to conclude a difference? Construct a 98% confidence interval for the true mean number of paid working hours at home. Compare the results of your confidence interval to the conclusion of your hypothesis test and discuss the implications. do you reject the null
A hospital is trying to cut down on emergency room wait It is interested in the amount of time patients must wait before being called back to be examined. An investigationcommittee randomly surveyed 70 patients. The sample mean was 1.5 hours with a sample standard deviation of 0.5 hours. Which distribution should you use for this problem? Construct a 95% confidence interval for the population mean time spent waiting. State the confidence interval, sketch the graph, and calculate the error bound. Explain in complete sentences what the confidence interval means.