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Compare and contrast probability and non-probability sampling. What are the advantages and disadvantages of each?
What is the intercept for the logistic regression equation and What is a 95% confidence interval for the odds ratio
Which of the following statements is true regarding a nonparametric test? We assume that the data has been chosen from a normally distributed population
If a manufacturer charges x dollars each for soccer balls, then he can sell 3000 - 150x soccer balls per week. Find a polynomial that represents the revenue for one week.
Assume that this city has 1100 shoppers aged 12 to 14 years and 900 shoppers aged 15 to 17 years. Find the mean amount spent per person per month by shoppers aged 12 to 17 years in this city.
With a standard deviation of 0.5. At a .05 significance level, can we conclude college students watch fewer videos per month than high school students?"
Using any present or past job related data, perform an ANOVA in either Excel or MegaStat. Write your null and alternate hypothesis. Post your ANOVA table. Interpret the results.
Let X be the number of successes at UZ. What is the distribution of X? What is the asymptotic distribution of your estimate from (d)?
If 64 students were randomly sampled, the probability that the sample mean of the sampled students exceeds 73.5 minutes is approximately 0.
Consumer products companies design different promotional activities to accomplish different goals. According to a spokesperson for General Mills, the company's cents-off coupon offers are designed to convince people to buy its products
What percentage of personal checking account customers carry average daily balances in excess of $800? What percentage of the banks customers carries average daily balances below of $200?
A sample of 16 batteries reveals a mean of 3.45 years and a standard deviation of 0.3 years. Find a 95% confidence interval for the population mean.
What two assumptions must be met when you are using the z test to test differences between two means? Can the sample standard deviations s1 and s2 be used in place of the population standard deviations σ1 and σ2?
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