Find the value of the range for the exam scores

Assignment Help Basic Statistics
Reference no: EM131719418

Question: The scores on the final exam in a course with a large number of students have approximately a bell-shaped distribution. The mean score was 70, the highest score was 98, and the lowest score was 41.

a. Find the value of the range for the exam scores.

b. Refer to part (a). Use the value of the range to estimate the value of the standard deviation.

Reference no: EM131719418

Questions Cloud

List the tasks that appear on the critical path : calculate ES, EF, LS, and LF for each task and the amount of slack. List the tasks that appear on the critical path.
What is the break-even point for the upgrades : Which would you choose to yield the best performance improvement for the least amount of money? Justify your answer through appropriate application.
Find a real-world application of poka-yoke : Find a real-world application of Poka-Yoke (you can analyze examples you find online or in your real-world experience).
Define what were the main symptoms of exposure : Acute or chronic skin reaction from an environmental toxicant from the region in which you reside. What were the main symptoms of exposure
Find the value of the range for the exam scores : The scores on the final exam in a course with a large number of students have approximately a bell-shaped distribution.
Define housing and maintaining its fleet of ambulances : a hospital buys a parcel of land near its main campus to build a facility for housing and maintaining its fleet of ambulances
Prepare an executive summary presentation of your project : Prepare an executive summary presentation of your project. It should summarize the final project so it can be presented to the board of a particular company.
Cost of opening the new branch and remaining open : He also expects to generate $150,000 per year in revenue. What is the total cost of opening the new branch and remaining open for one year?
What is the variance of stanford-binet iq scores : Scores on the Stanford-Binet IQ test have a bell-shaped distribution with mean = 100 and standard deviation = 16.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find the mean and standard deviation

Given the probability function R(x) = 0.2 for x = 0, 1, 2, 3, 4, find the mean and standard deviation. Draw a relative frequency histogram to depict the results

  Use the least squares method to develop the estimated

elliptical trainers are becoming one of the more popular exercise machines. their smoothand steady low-impact motion

  Data about statistics - hypothesis testing

A CEO of a large pharmaceutical company would like to determine if he should be placing more money allotted in the budget next year for television advertising of a new drug marketed for controlling asthma.

  Compute the test statistic and indicate your decision

question the mean life of a battery used in a digital clock is 305 days. the lives of the batteries follow the normal

  Fit both logistic and probit models modelling proportion

the following data show the number of fruit fly killed at varying concentrations of nicotine.the number of ies killed

  Calculating expected value for decision

Calculate expected value for each decision and choose the best one. Find out how much firm would be eager to pay to a market research firm to gain better information about future market conditions.

  What assumptions are necessary to perform given test

Can you conclude that the variances of the breaking strengths of natural and synthetic fibers are different? Use a level of significance α of 0.05. What assumptions are necessary to perform this test?

  Find the range mean median and mode of the data set what

a random sample of 20 people found that the number of mail-order catalogs that each had received in the last month were

  A study of the net sales of a sample of small corporations

a study of the net sales of a sample of small corporations revealed that the mean net sales is 2.1 million the median

  Critical value of the t distribution

What is the value of t*, the critical value of the t distribution for a sample of size 22, such that the probability of being greater than t* is 1%?

  Find the statistical difference between two proportions

Let p1 = 100 and n1 = 500; and p2 = 200 with n2 = 500. Test whether there is a statistical difference between the two proportions at the 5% significance level.

  Determining the binomial random variable

Suppose we ?ip a coin n times and let p denote the probability of heads. Let X be the number of heads. We call X a binomial random variable, which is discussed in the next chapter.

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