Does this evidence increase or decrease your confidence

Assignment Help Basic Statistics
Reference no: EM13952918

It is suspected that a random variable has a normal distribution with a mean of 6 and a standard deviation of 0.5. After observing several hundred values, we find that the mean is approximately equal to 6 and the standard deviation is close to 0.5. However, we find that 53% percent of the observations are be- tween 5.5 and 6.5 and 83% are between 5.0 and 6.0. Does this evidence increase or decrease your confidence that the data are normally distributed? Explain your answer.

Reference no: EM13952918

Questions Cloud

Find the probability of obtaining a mean height : The average height of male physicians employed by a Veterans Affairs med- ical center is 180.18 cm with a standard deviation of 4.75 cm. Find the probability of obtaining a mean height of 184.93 cm or greater for a sample size of 5.
Design a process tthat solves a problem : Given a salary amount, the tax is calculated by adding the base tax for that salary range and the product of percentage of excess and the amount of salary over the minimum salary for that range.
Compare and contrast classical and instrumental conditioning : Write a research paper given topic. The topic is: compare and contrast classical and instrumental conditioning
Calculate productivity as dollar sales per dollar input : Material and overhead costs average $5 per chair and $2500 per day, respectively. Franklin sells these chairs to a retailer for $40 each. What is themultifactorproductivity for a typical day? Calculate productivity as dollar sales per dollar input..
Does this evidence increase or decrease your confidence : It is suspected that a random variable has a normal distribution with a mean of 6 and a standard deviation of 0.5. After observing several hundred values, we find that the mean is approximately equal to 6 and the standard deviation is close to 0.5..
Implementation plan to show how organisation should proceed : An outline of an Integrated Marketing Communications plan (IMC: promotion); and, Financial and operational plans; and, implementation and control strategy - analysis of the product and branding;
How parents can help children deal with complex moral issues : Description: Discuss how parents can help children deal with complex moral issues during the middle late stages of childhood
Complicated for ordinary moral issues : Two major critiques of utilitarian reasoning are that the theory is too complicated for ordinary moral issues and that it can lead to exploitation of individuals, communities, and resources. Address each of these critiques separately along with th..
What proportion of these 25-year-old males will live past 75 : Suppose that the population of 25-year-old American males has an average remaining life expectancy of 50 years with a standard deviation of 5 years and that life expectancy is normally distributed. What proportion of these 25-year-old males wil..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Locate a news article or report in a popular news source

locate a news article or report in a popular news source such as time newsweek or the wall street journal in which a

  In a study of facial behavior people in a control group are

in a study of facial behavior people in a control group are times for eye contact in a 5-minute period. their times are

  What is the test value found using the t-test

If a correlation coefficient was calculated for n = 15, alpha = 0.01, and r = 0.85, what is the test value found using the t-test?

  A restaurant offers a special pizza with 5 toppings if

a restaurant offers a special pizza with 5 toppings. if there are 12 toppings from which to choose how many different

  What is approximately the probability of drawing at random

the distribution of vitamin c amount in vitamin drops produced by a given factory is approximately normal with a mean

  Combination of algorithmic and heuristic approaches

Minimum number of workstations that can be formed Identification of tasks in each work station using a combination of algorithmic and heuristic approaches The efficiency of the line

  Clinical trial is run to investigate the effectiveness

A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm delivery to a drug considered standard care and to placebo.

  A consulting firm has to make a decision concerning bidding

a consulting firm has to make a decision concerning bidding on a major project that has a projected profit for the firm

  According to a recent survey of new jersey households the

according to a recent survey of new jersey households the probability that the residents own 2 cars if annual household

  Subjective probability problem

Suppose that an executive of a venture capital investment firm is trying to decide how to allocate his funds among three different projects, each of which requires a $100,000 investment.

  Is there evidence using six-step critical value approach

Using the six-step critical value approach, at the 0.05 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 25 minutes?

  What is the decision rule for mortgage on a motel

At the 0.01 level, is the bank loan financially sound (should the bank ask for additional collateral)? What is the decision rule?

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