What is the lower limit of the confidence interval

Assignment Help Basic Statistics
Reference no: EM132464659

Problem: A medical student is interested in the mean IQ score of a given group of men. It is known that the IQ scores of the group have a standard deviation of 10. The medical student randomly selects 60 men from this group and finds that their mean IQ score is 103. Based on this sample, find a 95% confidence interval for the true mean IQ score for all men of this group.

Carry your intermediate computations to at least three decimal places.

What is the lower limit of the 95% confidence interval?

What is the upper limit of the 95% confidence interval?

Reference no: EM132464659

Questions Cloud

Number of cigarettes smoked by participants : At the end of the experiment the researcher obtained data on the number of cigarettes smoked by participants.
Each table and chair is distinct and numbered : Suppose Bilbo plans 11 circular tables with 11 guests at each table. Each table and chair is distinct and numbered. A seating plan assigns each of the 121 guest
Suggested improvements and strategic priorities : Implications of under performance in these areas should be explained. Areas for improvement should be supported by suggestions for specific and appropriate
What dollar amounts should be reported for final inventory : What dollar amounts should be reported for the final inventory and cost of goods sold under the net method? Assume that there was no beginning inventory
What is the lower limit of the confidence interval : What is the lower limit of the 95% confidence interval? What is the upper limit of the 95% confidence interval?
Computing the financial capability challenge : High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capability Challenge Exam
Write a report on the marketing of the organisation : Suggestions for specific and appropriate interventions, changes and introductions of alternative practices as appropriate - critically analyses and evaluates.
What is the lower limit of the confidence interval : What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?
Discuss the various new issues related to jenny and jason : On April 1, SG has locked the price of 100,000 kg of wheat at $0.75/kg. Upon its inception, SG did not have to put forth any cash.

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the probability that no helicopters are available

A forest district has 2 helicopters available for fighting forest fires. Given the following information, what is the probability that no helicopters are availa

  Calculate the t statistic assuming equal population variance

SOC 200 - Shapiro Fall 2015 - Calculate the standard error, the standard deviation of the sampling distribution, of the difference between these the mean number of hours studied by males and females and what is your research hypothesis and what is..

  Are the graphed curves in first order or second order

Graph the relationship between y and x1 for x2 = 0, 1, and 2.- Are the graphed curves in part a first-order or second-order?

  Calculate the average amount of sodium in beer

Given your findings in part a, determine if there is a difference in the average amount of sodium in 12 ounces of beer among the producers of the beer.

  Identify the independent and dependent variable and state

Identify the independent and dependent variable, and state the research hypothesis for your study. The variables must be categorical variables.

  Cyber warfare gains in sophistication

Stuxnet and more recent types of malicious software, or malware- particularly Duqu, Flame, and Gauss-herald a frightening new era in cyberwarfare. China, Russia, the United States, and other nations have been engaging in cyberw arfare for several ..

  Hectograms and a standard deviation of hectograms

Assuming that the birth weights are normally distributed, how many weighted between 12 and 24 hectograms?

  Estimate the percentage of the 2929 aftershocks

Estimate the percentage of the 2,929 aftershocks measuring between 1.5 and 2.5 on the Richter scale.- Estimate the percentage of the 2,929 aftershocks measuring greater than 3.0 on the Richter scale.

  What conclusion can be drawn

Suppose we want to test the hypothesis that a given population distribu- tion is exponential with mean 100; that is, F(x) = 1 - e-x/100.

  Find the correlation coefficient regression equation

Use the given data to find the correlation coefficient r, regression equation and scatter plot in MS Excel. Based on the linear correlation coefficient r, is this a good model? Explain

  Explain why an anova was used to analyze

Difference in the mean prices between the three stores? What is the p-value? Explain why an ANOVA was used to analyze this problem.

  Spending of customers receiving the promotion

Give a 90% confidence interval for the mean spending of customers receiving the promotion.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd