Purchase Solution

Computing 90% confidence Interval from 95% confidence Interval alone

Not what you're looking for?

Ask Custom Question

Computing from a large sample, one finds the 95% confidence interval for μ to be (6.8, 14.2). Based on this information alone, determine the 90% confidence interval for μ.

Attachments
Purchase this Solution
Solution Summary

The solution to the problem, finding 90% confidence interval, when 95% confidence limits are given is explained step by step with all the working so that student could use this solution to solve other similar problems.

Solution Preview

Given, 95% confidence interval = ( 6.8 , 14.2 )

The sample mean ...

Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

View More Free Quizzes
Related BrainMass Solutions

  • Drawing Inference from Large Samples

    87405 Drawing Inference from Large Samples I need some details on how the answer was obtained: Computing from a large sample, one finds the 95% confidence interval for the mean to be {6.8, 14.2}.

  • Applying statistics to a variety of situations

    Computing from a large sample, one finds the 95% confidence interval for ì to be (6.8, 14.2). Based on this information alone, determine the 90% confidence interval for ì. Please see the attached file.

  • Mean weekly child care cost for employees

    $107 $92 $97 $95 $105 $101 $91 $99 $95 $104 Develop a 90 percent confidence interval for the population mean. Interpret the result.

  • Confidence interval samples

    Make a 90% confidence interval estimate of μ. c. Make a 95% confidence interval estimate of μ. d. In general, how is the width of a confidence interval related to the percentage of confidence? Please see the attachments .

  • Confidence interval for mean of golfers

    (B) Find the 90% confidence interval of the mean score for all golfers if this is a sample of 95 golfers instead of a sample of 140. (C) Which confidence interval is smaller and why? Please find attached answers.

  • Hypothesis testing and confidence interval

    166640 Solving hypothesis testing and confidence interval problems Exercise 8.5 Find a confidence interval for u assuming that each sample is from a normal population.

  • Confidence iinterval problems

    The 90% Confidence interval is (_______, ____) Round to one decimal place as needed.) The 95% confidence interval is (_______, ________). Round to one decimal place as needed. Which interval is wider? A. The 955 Confidence Interval B.

  • Confidence interval for mean

    This solution gives the step by step method for computing confidence interval for mean.

  • 90%, 95% and 99% confidence intervals using normal distribution

    (c ) Is a 99% confidence interval estimate of the mean SAT score wider than 95% confidence interval estimate you got from part (b)? Why? [You don't have to construct the 99% confidence interval] 1.

View More Related Solutions