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Am trying to understand the proper way to phrase the null and test hypothesis for a two sample test and to determine if I am properly rejecting the null hypothesis.
Question: Determine if there is evidence to conclude that the mean number of vacations taken by married individuals is less then the number taken by single/divorced individuals using data in Excel file vacation survey.
If a complete failure occurs, calculate the probability that the fault occurred in:
Given the following data on Asian and European Share of U.S. Light Truck Sales(1990-2003): Which trend model is best, and why? If none is satisfactory, explain.
At the .05 significance level, can we conclude that the guideline is still reasonable?
Draw a transition diagram. Write the Transition Matrix. If it rains on Thursday, what is the probability that the restaurant will be closed on Saturday? And on Sunday?
Determine the probability of having more than 3 defects in a roll?
Compute a 95% confidence interval for the average time spent in training per year at this firm. Develop a graph showing the data below as a frequency distribution. Note the mean and the confidence interval on the graph.
For monthly volume of 300 tables, find out total cost, total revenue, and profit.
At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
There are two telephone lines A and B. Let E1 be the event that line A is being used and E2 be the event that line B is being used
Do the data indicate that the lengths of one supplier's 2x4's are subject to more variability than those of the other supplier? Assume α = 0.05. (HINT: F Test for Differences in Two Variances)
To compute all the descriptive statistics for the following set of three test scores over the course of a semester. Which test had the highest average score? Which test had the smallest amount of variability?
Find out the probbility that exactly five arrive within two days?
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