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Suppose you will perform a test to determine whether there is sufficient evidence to support a claim of a linear correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance level alpha. n = 11, Alpha = 0.01
Does thus data support the researchers' hypothesis? Test the relevant hypothesis using a = .1 by first calculating a p-value.
How much money would a Western household have to spend on groceries per year in order to be at the 99th percentile?
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighted on a very accurate scale. The results in grams were:
A sample of 144 cans of coffee showed an average weight of 16 ounces. The standard deviation of the population is known to be 1.4 ounces.
Student record revealed that 16 out of a random sample of 64 of student with loans. It supposed that current rate is persisting across all students. Compute probability that number of students with loans will be less than 375.
For value 10,40,20,50 and 40, value of arithmetic mean is? Simplest measure of dispersion is the Standard deviation, variance, Quartile deviation.
Organize data into a frequency distribution. How many classes would you propose? What value would you propose for class interval?
On opening day one season, 10 major league baseball games were played and they lasted the following numbers of minutes. Find the sample variance.
Based on the data, determine the 95 percent confidence interval evaluate for true population mean?
Find the test statistic value for testing the equality of population means of the two samples.
The researcher expects a 12-point treatment effect and plans to use a two-tailed hypothesis test with a = 0.05.
The Wilcoxon signed rank statistic, The mean for the Wilcoxon signed rank test and The P-value for the Wilcoxon signed rank test
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