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1. Under what conditions should you use the ÷2 (chi-square) test to determine whether there is a difference between proportions of two independent populations?2. Under what conditions should you use the ÷2 test to determine whether there is a difference between the proportions of more than two independent populations?3. Under what conditions should you use the ÷2 test of independence?4. Under what conditions should you use the McNemar test?5. What is a nonparametric procedure? Describe specifically when you would utilize a nonparametric test.6. Under what conditions should you use the Wilcoxon sum rank test?7. Under what conditions should you use the Kruskal-Wallis rank test?
What is the probability that the sum of their scores exceeds 1200 and probability that the average of the scores of all 400 student
Assume that a hypothesis test of the given claim will be conducted. The college Dean of Admissions claims that the times students require to earn a bachelors degree have a mean less than five years. Which equality/inequality (e.g., =, =
Of the next 15 people that invest in this project, what is the probability that 5 or less people will result an annual net cash flow of at least $100,000.
Suppose that lifetimes of such mice are normally distributed with standard deviation of 6 months, determine the probability that given mouse will live?
What would be the correct null and alternative hypothesis for the following situation: The sample has a mean of 72.3 mph and a standard deviation of 7.4 mph. Use a 0.05 significance level to test the claim that the mean speed of all cars is greate..
What is the probability that the average of the scores of the two students from university A will be greater than average of the scores of the three students from University B?
Forecast sales for the next day using a three-day weighted moving average where the weights are 3, 1, and 1 (the highest weight is for the most recent number).
An environmentalist estimate that the mean waste recycle by adults in the country is more than 1 pound per person per day. You want to test this claim, you find that the mean waste recycled per person per day for a random sample of adults in the c..
A person must score in the upper 2% of the population on an IQ test to qualify for member ship in Mensa, the international high-IQ society. If IQ scores are normally distributes with a mean of 100 and a standard deviation of 15, what score must a ..
mean is calculated for each sample, then the average distance between M and u would be:
Construct the 90% and 95% interval estimates for the population mean weekly sales.
Use the model to predict the selling price of a house that is 1,860 square feet.
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