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In a lottery every week, 2,000,000 tickets are sold for $1 apiece. If 4000 of these tickets pay off $30 each, 500 pay off $800 each, one ticket pays off $1,200,000, and no ticket pays off more than one prize, what is the expected value of the winning amount for a player with a single ticket?
one box contains six red balls and four green balls and a second box contains seven red balls and three green balls. a
In any of the multiple comparison techniques (Tukey Kramer, LSD), the estimate of the within-sample variance uses data from the entire experiment.
What is the difference between statistical significance and practical significance?- Discuss the reasons that a researcher might obtain non significant results.
Which variable, gender or educational level, seems to have the stronger association with opinion? Explain your reasoning.
A loan application is received this morning. What is the probability that:
if a couple were planning to have three children the sample space summarizing the gender outcomes would be bbb bbg bgb
Given that the battery still works at 20, 000 km, what is the probability it lasts for at least another 40, 000km?
Sample of six car washes averaged $5.70 and had the sample standard deviation of $1.30. Suppose the normal population, use critical value method to test claim at a= 0.05.
Add titles and modify the default colors, fonts, etc., as you judge appropriate to make the scatter plot effective. (b) Describe the relationship (if any) between X and Y. Weak? Strong? Negative? Positive? Linear? Nonlinear?
The number of stereos sold on each weekday. State the hypotheses and identify the claim, find the critical value(s), compute the test value, make the decision and summarize the results.
Both estimates are obtained from independent random samples of 25 days. Conduct a test for equality of mean catch and report your p-value.
find the critical value taalpha2 that corresponds to a confidence level of 95 and a sample size of
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