Find the equation of the regression line to predict

Assignment Help Basic Statistics
Reference no: EM131102239

A mathematics placement test is given to all entering freshmen at a small college. A student who receives a grade below 35 is denied admission to the regular mathematics course and placed in a remedial class. The placement test scores and the final grades for 20 students who took the regular course were recorded as follows:

(a) Plot a scatter diagram.
(b) Find the equation of the regression line to predict course grades from placement test scores.
(c) Graph the line on the scatter diagram.
(d) If 60 is the minimum passing grade, below which placement test score should students in the future be denied admission to thiscourse?

Reference no: EM131102239

Questions Cloud

Various governments policies : Discuss how externalities may prevent market equilibrium and how the various governments policies could be used to remedy the inefficiencies in markets caused by externalities.
Describe the relationship among the accounting process : Describe the relationship among the accounting process, accounting information, decision makers, and economic activities.
Verify the algebraic relation between the squared energy : Modify the picture and argument in Figure 8.4 to verify the algebraic relation between the squared energy difference and the inner product in (8.22)
What is the primary distinction between financial accounting : What is the primary distinction between financial accounting and managerial accounting?
Find the equation of the regression line to predict : A mathematics placement test is given to all entering freshmen at a small college. A student who receives a grade below 35 is denied admission to the regular mathematics course and placed in a remedial class.
Should the firm accept the project : Should the firm accept the project? If total costs consisted of a fixed cost of $10,000 per year and variable costs of $95 per unit, and if only the variable costs were expected to increase with inflation, would this make the project better or worse?..
Use accounting information : What kinds of organizations, in addition to businesses, use accounting information?
Responsibility of working with organization : You have been given the responsibility of working with your organization's CEO to do a competitive market analysis of the potential success of one of their existing products.
Null hypothesis that true average survival time : The article "The Effect of Enzyme Inducing Agents on the Survival Times of Rats Exposed to Lethal Levels of Nitrogen Dioxide" (Toxicology and Applied Pharmacology, 1978: 169-174) reports the following data on survival times for rats exposed to nit..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Question regarding the testing the claim

Assume that the significance level is alpha equals 0.05α=0.05. Use the given information to find the P-value and the critical value(s). The test statistic of z=1.60 is obtained when testing the claim that p>0.9.

  Nonprice variables jointly significant in the lpm

Are the nonprice variables jointly significant in the LPM? (Use the usual F statis- tic, even though it is not valid when there is heteroskedasticity.) Which explana- tory variable other than the price variables seems to have the most important ef..

  Online service usage you are a travel agent and wish to

online service usage you are a travel agent and wish to estimate with 97 confidence the proportion of vacationers who

  Diameter of stabilizing o-rings washers

The diameter of stabilizing O-Rings washers manaufactured at a large factory is expected to be normally distributed with a mean of 1.30 inches and a standard deviation of 0.04 inches.

  A bright idea a company produces lightbulbs whose life

a bright idea. a company produces lightbulbs whose life follows the n1500 300 distribution i.e. the lifetimes of

  The rr bowker company collects information on the retail

the r.r. bowker company collects information on the retail prices of books and publishes the data in the bowker annua

  Effect of sample size on the width of confidence interval

1. When you construct a 95% confidence interval, what are you 95% confident about? 2. What is the effect of sample size on the width of a confidence interval?

  Find the 95 confidence interval for the standard deviation

find the 95 confidence interval for the standard deviation of birth weights at county general hospital if the standard

  Determining the covariance

The table given below shows joint probability distribution of X and Y . Determine the covariance between the X and Y ?

  The following information shows the amount of time in

the following information shows the amount of time in minutes that a mechanic on an assembly line misses the design

  Data set in bell-shaped distribution

The mean SAT verbal score is 478, with a standard deviation of 98. Use the Empirical Rule to determine what percent of the scores lie between 380 and 478. (Assume the data set has a bell-shaped distribution)

  Normal distribution of diameters of grapefruits

The diameters of grapefruits in certain orchard are normally distributed with mean of 6.95 inches and a standard deviation of 0.75 inches. Show all work.

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