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What is the test-retest method of estimating reliability? Describe the type of study that would be needed to find evidence of test-retest reliability. When is this method best used? When should it not be used?
Note: Just elaborated answers please, if any definition is added you need to cite it ad provide the reference. Pasted answers are not allowed.
what is the probability that a single fisherman's catch is less than 31.5 pounds? what is the probability that the sample of 30 fisherman's average catch is less than 31.5 pounds?
Draw a model of the relation {(-6,-8), (3,-3), (-6,-7), (9,7)}. Is the relation a function? Why or why not? Evaluate the function at the specified values of the independent variable and simplify.
The condition for the question is that the deck of cards has 52 cards and among them are 12 face cards. What is the probability of choosing 6 face cards out of 8 chosen. Thru Binomial distribution holds( meaning with replacement)
Using the given data set, find (a) the sample mean, (b) the sample standard deviation, (c) construct a 98% confidence interval for the population mean μ.
How large a sample should she take to estimate the percentage with a margin of error of no more than 4%, with 90% confidence?
a researcher believes exercise reduces anxiety in women. she identifies a group of women who had not exercised before
Construct a histogram for these data. The component lifetimes are supposed to be exponentially distributed. Does this seem like a reasonable assumption? Explain. Estimate the parameter of the exponential distribution and explain what it means.
one of larrys investments is going to mature and he wants to determine how to invest the proceeds of 30000. larry is
A seven year old study reported that women whose mothers used the drug DES during pregnancy were twice as likely to develop tissue abnormalities that might lead to cancer as women whose mothers did not take the the drug.
Of the 500 surveyed, 350 said they would vote for the Democratic incumbent. Using the 0.99 confidence coefficient, what are the confidence limits for the proportion that plan to vote for the Democratic incumbent?
a statistic for mean failure time has an exponential distribution with parameter lambda.recall the exponential
Arbitarily sampling one man and one woman from this population, determine probability neither is a Tay-Sachs carrier? Compute the probability both are carriers?
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