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Foofy obtained a significant Fobt from an experiment with five levels. She therefore concludes that changing every condition of the independent variable results in a significant change in the dependent variable. (a) Is she correct? Why or why not? (b) What must she now do?
let y be b192p. we rehect h0p0.75 and accept h1 pgt0.75 if and only if ygt152. use the normal approx to determine.a
Explain how the Central Limit Theorem can help you convince your boss that while you can't get rid of sampling error the results from your statistical work (that is based on sampling) can still be useful.
the following data represent the number of children in a sample of 10 families from chicago 4 2 1 1 5 3 0 1 0 and 2.
farmers national bank issues mastercard credit cards to its customers. a main factor in determining whether a credit
Analysis of Variance (ANOVA) is used to test the equality of the means of three or more groups based on sample data. ANOVA is really a test of means even though it sounds like a test of variance.
Of the 250 students in a blind taste test, 150 (60%) preferred Milwaukee's Best over Natural Light. Then the 90% confidence interval for the student population proportion preferring Milwaukee's Best is:
grear tire company has produced a new tire with an estimated mean lifetime mileage of 37500 miles. management also
Do these simulated data provide evidence for us to conclude that a difference in the spinal canal cross sectional area exist between the population of subjects with disc hernination and a population of those who do not have disc hernation?
Binomial distribution to find out the mean also standard deviation. Variance and standard deviation of a lot of 300 calculators.
Compute the indicated confidence interval for the differenciate in proportions. Suppose that the samples are independent and that they have been randomly selected.
A vending machine that dispenses coffee into cups must fill the cups with 7.8oz of liquid. Before selling the vending machine to a college or business, the company tests the machine to be sure it is dispensing an average amount of 7.8oz of coffee.
A geologist has collected 10 specimens of basaltic rock and 10 specimens of granite. The geologist instructs a laboratory assistant to randomly select 15 of the specimens for analysis.
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