Find the regression equation

Assignment Help Basic Statistics
Reference no: EM131180707

Predict final exam from midterm In an introductory statistics course, x = midterm exam score and y = final exam score. Both have mean = 80 and standard deviation = 10. The correlation between the exam scores is 0.70.

a. Find the regression equation.

b. Find the predicted final exam score for a student with midterm exam score = 80.

Reference no: EM131180707

Questions Cloud

Develop political economic risk profile for a given country : Select a small company and explain what it would have to do to manage these risks if it were to enter the market of the country profiled.
Households nationwide used natural gas : According to a research,54.0% of households nationwide used natural gas for heating during a year. Recently, a survey of 4800 randomly selected households showed that 55.0% used natural gas. Use a 0.05 significance level to test the claim that the..
Do think scientific or non-scientific thinking would provide : Provide an overview of how, using the steps of the scientific method, the research question could be studied. In this discussion, reflect on what your hypothesis would be and if you would want to use a qualitative or quantitative research design.
Confidence interval for the population proportion : In a survey of 3963 adults, 706 say they have seen a ghost.Construct a 99% confidence interval for the population proportion. Interpret the results. 1) A 99% confidence interval for the population proportion is ( , )
Find the regression equation : Predict final exam from midterm In an introductory statistics course, x = midterm exam score and y = final exam score. Both have mean = 80 and standard deviation = 10. The correlation between the exam scores is 0.70.
The best ways for the gumbels to promote their business : What might be the best ways for the Gumbels to promote their business? -  How can the Gumbels prospect for new customers?
Blood bank serving this population : 1. The Rh Factor: In a certain population, 15% of the people have Rh-negative blood. A blood bank serving this population receives 92 blood donors on a particular day.
Which subcontractor is responsible for drilling and sealing : What must be provided for a condensate line from the fan coil inside a walk-in freezer to keep the water from freezing? Which subcontractor is responsible for drilling and sealing the penetration through the cooler panel for the condensate line to..
Calculate the electric field for the charge distribution : Calculate the electric field for the charge distribution from Part A, both directly by superposition, and using the potential that you calculated above. Comment on what you find.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determine the correlation coefficient

Since SAT scores are designed to be normally distributed, the Spearman rank correlation may be an especially effective tool for this comparison. Use the Spearman rank correlation test to determine the correlation coefficient.

  Compute binomial probability distribution

Find the probability that when 236 reservations are accepted for Flight 179, there are more passengers showing up than there are seats available.

  From a box containing 4 dimes and 2 nickels 3 coins are

from a box containing 4 dimes and 2 nickels 3 coins are selected at random without replacement. find the probability

  Describe the shape of the sampling distribution

What is the standard deviation of the sampling distribution of p(hat) the proportion of all rolls of the die that show a 1 or a 2? 3.) describe the shape of the sampling distribution of p(hat).

  Suppose that replacement times for washing machines are

1.a library determines that its books are returned on time 90 of the time. if 450 books are checked out what is the

  Vector of ones and zeros

Write a function called flipNth, that will flip every Nth entry of the input vector (make the entry 0 if it is 1 and make it 1 if it is 0) and return the modified vector. The function declaration line should be function [outVec] = flipNth(inVec, N)

  You sample 254 students what is the standard deviation of

almost all medical schools in the us require students to take the mcat. to estimate the mean score mu of those who took

  What would be the effect of changing the value

If an analysis of variance is used for the following data, what would be the effect of changing the value of M1 to 20?

  Choose the correct interpretation of the confidence

a stastics instructor randomly selected four bags of oranges each bag labeled 10 pounds and weighed the bags. they

  Estimating the proportion of students

1) A student organization at a university is interested in estimating the proportion of students in favor of showing movies biweekly instead of monthly.   A SRS of 423 students revealed that 180 are in favor of showing movies biweekly.

  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

  Normal distribution having standard deviation

Assume that demand for the upcoming weekend is normally distributed with a standard deviation of 30. (a) What is the probability that all the hotel's room will be rented?

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