Correlation between hours spent in the course

Assignment Help Basic Statistics
Reference no: EM1398310

The correlation between hours spent in the course and exam grades is .8. what percent f variation in exam grades can be explained by hours spent in the course?

Reference no: EM1398310

Questions Cloud

Developing a trend line : Develop a trend line for the demand for fertilizer using computer software. Data collected on the yearly demand for 50 pound bags of fertilizer at Wallace Garden Supply are shown in the following table:
What are the potential benefits : what are the potential benefits and the overall risks of genetic engineering? please explain and give exmaples.
Client server chat system : Threading and GUI design using Java's network library, threading system, and swing user interlace libraries to implement a basic chat client and saver system. Thc system will allow multiple. remote users to send and receive messages across the net..
Detemine one un-breakable rule of dramatic writing : Detemine the one un-breakable rule of dramatic writing? When adapting novel to screen, what does screenwriter owe the original material?
Correlation between hours spent in the course : The correlation between hours spent in the course and exam grades is .8. what percent f variation in exam grades can be explained by hours spent in the course?
Explain the main trends in tfr and replacement fr : please explain the main trends in TFR and replacement FR in developed versus devloping countries? How can TFR of the overall human population be lowered.
Predicted value of cricket chirps : Find the best predicted temperature (in degree F) at a time when a cricket chirps 3000 times in one minute. What is wrong with this predicted value?
What is the frequency of w in this genetics class : The ability to taste "Wine" is controlled by a dominant allele W, while individuals homozygous for the recessive allele w, are unable to taste Wine. In a recent genetics class of 125 students, 88 were able to taste Wine, but 37 could not. Assume H..
Which direction of research appears to having most success : which direction of research appears to be having the most success.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Presume 10 undergraduate students are selected randomly

Nine percent of undergraduate students carry credit card balances greater than $7000. Presume 10 undergraduate students are selected randomly to be interviewed about credit card usage.

  Standard error for a particular population

For a particular population, a sample of n = 9 scores has a standard error of 4. For the same population, a sample of n = 16 scores would have a standard error of ??

  Confidence interval for the mean monthly expenditure

What is a 90% confidence interval for the mean monthly expenditure on gasoline per household in Slippery Rock?

  Sample standard deviation of the first set of strengths

The sample standard deviation of the first set of strengths was 8.2 ksi, the second set's S value was 9.8 ksi, and the S value for the 25 differences in strengths was 3.3 ksi.

  Score randomly selected from distribution

A normal distribution has a mean of µ = 70 with σ = 12. If one score is randomly selected from this distribution, what is the probability that the score will be less than X = 55?

  Determining acceptance sampling

An assembly line turns out 10% deffectives. Determine an acceptance number and sampling plan for samples of size 14 and a producers risk of 3%. (AQL = 10)).

  Probability based on relative frequency

What is the probability that a roulette ball will come to rest on an even number other than 0 and 00?

  Evidence of candidate has sufficient valid signature overall

Is this statistically significant evidence that candidate has sufficient valid signatures overall? Describe.

  What is the overall reliability of the system

A product is made up of two subsystems in parallel. Subsystem one consists of ten elements in series each with a failure rate of 1/100. The second subsystem consists of 5 elements in series each with a failure rate of 1/200. What is the overall re..

  Anova analysis-pharmaceuticals

A pharmaceutical company has developed a drug that is expected to reduce hunger. To test the drug, three samples of rats are selected with n=10 in each sample.

  Determining steps in the hypothesis testing procedure

What are the five steps in the hypothesis testing procedure, what does each step represent, what are the advantages and disadvantages of using a hypothesis testing procedure?

  Nyke case study

Due to financial hardship, the Nyke shoe company feels they only need to make one size of shoes, regardless of gender or height. They have collected data on gender, shoe size, and height

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