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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.
1. Use a Wald-Wolfowitz runs test to assess whether the data provided by the cereal manufacturer in Prob lem 10.1 might be the outcome of a random sample from some population distribution. The observations occurred sequentially rowwise. Use a s..
1. you are tracking correlation of two funds fund a and fund b. examining current quarter data to date the probability
Your company has experienced problems with employee morale and productivity. The consultant that was hired submits a report that includes opinions and data collected from 300 secretaries and clerks as well as 75 senior managers.
a bag contains 10 red 12 green and 8 yellow marbles. assuming that all the marbles are equally likely to be picked from
chi-square test for goodness of fit.there are four entrances to the government center building in downtown
From these statistics she calculates a 90% confidence interval of [20.9 grams, 25.1 grams]. What can the researcher do to decrease the width of the confidence interval?
The number of viewers of American Idol has a mean of 33 million with a standard deviation of 10 million. What is the probability that next week's show will: Have between 37 and 44 million viewers?
What are the differences between a two sample t-test and ANOVA hypothesis testing? What is an example of a research idea that would need to be analyzed using an ANOVA?
Explain why you would think that the shape you describe above in a) happens with this type of data.The type of data is a collection of waiting times at a local bank in a commercial district during a lunch time. If you were one of these customers,..
a group of twelve people want to sit around a round table with twelve seats. we dont care who is facing what
for an f-ratio with df 2 10 the critical value for a hypothesis test using a .05 would be . explain your
Coast-to-Coast Airlines is investigating the possibility of reducing the cost of fuel purchases by taking advantage of lower fuel costs in certain cities. Since fuel purchases represent a substantial portion of operating expenses for an airline, i..
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