Determining the strength of correlation

Assignment Help Basic Statistics
Reference no: EM1395338

Determining the strength of a correlation is very important to determine how well one variable can predict another. To determine the strength of a correlation, we have to calculate the correlation coefficient, r.

Explain how people's scores on two variables can be used to calculate r.

Reference no: EM1395338

Questions Cloud

Range of correlation coefficient : What is the range of correlation coefficient? Give a real world example of positive and negative correlation. Do you want stocks which are highly correlated with each other or less correlated? Why?
Determine the frequency of nonparental ditype asci : In Neurospora, the a locus is 5 mu from the centromere on chromosome. The b locus is 10 mu from the centromere on chromosome 7. From the cross of a b+ (x) a+ b,
At what speed would your 4.98 m long car fit in the 4.19 m : At what speed would your 4.98 m long car fit in the 4.19 m Part 1 When parked, your car is 4.98 m long. Unfortunately, your garage is only 4.19 m long. How fast would your car have to be moving (in c) for an observer on the ground to find your car..
Probability that everyone will pass the exam : If there are 500 students in the school, what is the probability that everyone will pass the exam?
Determining the strength of correlation : Determining the strength of a correlation is very important to determine how well one variable can predict another. To determine the strength of a correlation, we have to calculate the correlation coefficient, r.
Interpretation of distance-time graph : Interpretation of Distance-time Graph 1. Which car is ahead and by how much distance after 3 hours? 2. Which car stops moving after 3 hours?
Test for partial correlation : A researcher is interested in determining the partial correlation between age (X) and attitude towards interracial marriage (X), controlling for place of residence (rural or urban) (W).
Number of granite selected for analysis : What is the probability that the number of granite selected for analysis is within 1 standard deviation of it means value.
Statistical correlation versus causation : Describe a different example of where the independent variable, while highly correlated to the dependent variable, does not cause the dependent variable to change directly.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Normal approximation to the binomial distribution

Normal approximation to the Binomial distribution - Evaluate the probability that at least 195 of the students are female.

  Is it reasonable to conclude that any of the trucks

Fast Service Truck Lines uses the Ford Super Duty F-750 exclusively. Management made a study of the maintenance costs and determined the number of miles traveled during the year followed the normal distribution. The mean of the distribution was 60..

  Explain the given anova excel output table

The display represents Excel output for an ANOVA analysis with σ = 0.05.

  Descriptive statistics for the data

Here are fifty observations on the weight of tea bags. Calculate the Standard Deviation and Variance.

  Computing all the descriptive statistics

To compute all the descriptive statistics for the following set of three test scores over the course of a semester. Which test had the highest average score? Which test had the smallest amount of variability?

  Sampling frame-matching population

In each of the following situations, the sampling frame does not match the population, resulting in undercoverage. Give examples of population members that might have been omitted:

  What was the mean height for both groups

In a sample of 20 men, the mean height was 178 cm. In a sample of 30 women, the mean height was 164 cm. What was the mean height for both groups put together?

  Homogeneity of variance assumption test

How do we decide if the homogeneity of variance assumption is significantly violated?

  Current value of raised revenue from a new airport

It could not do anything with the airport and suffer a loss of revenue. The current value of raised revenue from a new airport is in question.

  Normally distributed population mean

If 50 cups of coffee were measured, what is the probability that: The sample mean per cup is less than 7.8 ounces?

  Identifying sampling types

The personnel manager at a company wants to investigate job satisfaction among the female employees. One evening after a meeting, she talks to all 30 female employees who attended the meeting.

  Difference for effect of treatment by gender

Describe the mean difference that is the main effect for the treatment. Describe the mean difference that is the main effect for gender. Is there an interaction between gender and treatment? Explain the answer

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