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The probability that a student passes mathematics is 2/3 and the probability that he passes biology is 4/9. If the probability of passing one course is 4/5, what is the probability that he will pass both courses?
Whether the suitable analysis would be one-tailed test or two-tailed test. A type I and type II error, given context of hypothesis.
A newly married couple plans to have four children. Assume that boys and girls are equally likely each time the child is born. Determine the probability couple will have no more than 2 boys?
Describe a scenario related to the final project in which you would use repeated-measures ANOVA. Describe a scenario related to the final project in which you would use MANOVA.
A random sample of 160 car crashes are selected and categorized by age. The are listed below. The age distribution of for the given categories is 18% for under 26, 39% for 26-45, 31% for 46-65, and 12% for over 65.
State the Null and Alternative Hypotheses. Determine the test statistic. Determine and interpret the p-value
Xerox Claims their copier is the same speed as Cannon's copier. The average speed of cannon's copier is 27 copies per minute. A test of 49 runs is done on the Xerox copier giving a sample mean X = 26 and a sample standard deviation s = 2.65.
Estimate using three day weighted moving average. Estimate sales for the next day using a three-day weighted moving average where the weights
In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered.
In how many ways can at least one of the 3 selected vials have a hairline crack if the order of selection does not matter?
Construct a 95% confidence interval estimate for the population proportion of administrative professionals who prefer cash bonuses.
Explain finding value of test statistic and P-value also understand the result. At the .01 significance level can we compute that the mean fare has increased.
Primary healthcare workers believe that anaphylactic shock reaction to immunization injections occurs with children in one case in two thousand.
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