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What is the average price of a house in Franklin County, OH? We took a random sample of 100 houses and found the average to be $120,128 and the standard deviation to be $50,324. Use the data to construct a 95% confidence interval to answer the question.
question to help students improve their reading a school district decides to implement a reading program. it is to be
A test is given to graduates of tw buisness schools A and B. The scores are given out of 100. Test whether the school differ in quality by using Mann- Whitney U- test with a 10% level of significance.
A company requires its secretarial employees to demonstrate his/her ability to type more than 45 words per minute in a typing test.
Find out the probability that the return for common stocks will be more than 0%.
adult consumers at three fast-food hamburger chains at lunchtime in new york city were approached as they entered the
a recent poll found that 73 of 18-29 year-ols said they were registered to vote. a group of 50 randomly selected iupui
At a recent meeting of educational researchers comparison were made between the type of college freshmen attend and the numbers who drop out.
what is the required sample size is the error is to be less than 1/2 hour with a 95% level of confidence?
a manufacturer of precision measuring instruments claims that the standard deviation in the use of the instruments is
What is the appropriate procedure to test for a significant difference in means between the two groups? Implement the procedure in problem using the critical value method
find the critical values for the indicated test for a population variance sample size n and the level of significance
Develop a scatter diagram for these data with years of experience as the independent variable and develop an estimated regression equation that can be used to predict annual sales given the years of experience.
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