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A business researcher uses two-way ANOVA in a report for a client. The researcher does not check the assumptions of using the technique. Is this a problem? (Please explain and give examples.)
Critically discuss why you would or would not expect each of the following variables to be normally distributed.
A bank official reported the results of a regression analysis designed to predict the bank's charges (y), measured in dollars per month, for services rendered to local companies.
A point estimate for the difference between the mean purchases of the users of the two credit cards is:
Computing the probability values using normal distribution - The data set has a bell-shaped distribution. Between what two prices do 68% of the houses lie?
Suppose that nine additional firms will be added to the bankruptcy rolls during the next quarter. How many of those failures are likely to be attribute to fraud?
Construct the 95 percent confidence interval for the difference between the two population means.
What is the probability of drawing two diamonds after discarding 5 and 7.
Determine the probability that: a) Exactly 3 will have this mild side effect.
Calculated test statistic at the 5% level of significance and An airline claims that 65% of its flights depart on time.
Indicate your hypotheses, decision rule, statistical decision and management conclusion using the critical value and then find the p-value and state your decision rule, statistical decision and management conclusion using this method.
Assume if random samples of size n = 9 are selected can we say anything about the distribution of sample means.
1) What is correlation? 2) What is an example of two variables that are likely to be correlated because they are both changing over time?
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