Probability that chip has lifetime of less than eight years
Lifetimes of computer memory chips have Gamma distribution with mean μ=4 years and variance σ2=16/3 years. What is the probability that such a chip has a lifetime of less than 8 years?
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Find the z-score location of vertical line that separates normal distribution as described in each of the following 20% in the tail on the left.
You notice in your introductory psychology class that more women tend to sit up front, and more men in the back. To determine wheather this difference is significant, you collect data on the seating preferences for the students in your class. The
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What is coefficient of dispersion. & why coefficient word is used here.
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Develop a regression model that would predict the DJIA based on the S&P 500 index. Based on this model, what would you expect the DJIA to be when the S&P is 1,100? What is the correlation coefficient (r) between the two markets?
Compare and contrast internal and external validity. Describe and give examples of research questions for which external validity is a primary concern.
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Question: What conclusions can be reached about the ideological bias of the news media? Group of answer choices
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