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Assume that matched pairs of data result in the given number of signs when the value of the second variable is subtracted from the corresponding value of the first variable. Use the sign test with a 0.05 significance level to test the null hypothesis of no difference.
a. Positive signs: 13; negative signs: 1; ties: 0 (from a preliminary test of the MicroSort method of gender selection)
b. Positive signs: 5; negative signs: 7; ties: 1 (from a class project testing for the difference between reported and measured heights of males)
use hypothesis testing to test the independence of opinion between the two groupsprefer lecture prefer computer
a real estate agent has 12 properties that she shows. she feels that there is a 40 chance of selling any one property
Some researchers have conjectured that stem-pitting disease in peach tree seedlings might be controlled with weed and soil treatment. An experiment was conducted to compare peach tree seedling growth with soil and weeds treated with one of two her..
in a recent survey ten percent of the homes in montana were found to own a miley cyrus action figure. in a sample of
Create a 99% confidence interval estimate of population mean amount of paint included in a 1 gallon can.
suppose that a hypothesis test is performed at a small significance level. state the appropriate conclusion in each
The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
Standard Normal Distribution Table
I need to make a perfect positive linear correlation scatter diagram. Could you please outline this procedure so that I can continue to make other scatter diagrams
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a chi-square test for independence is used to evaluate the relationship between two variables. if both variables are
In a random sample of 512 parents with young children, 275 admitted to spanking their child as a regular form of punishment. Use the classical approach, at a 10% level of significance, to test the sociologist's claim.
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