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Q1: What are some real life examples of the use of Chi-Square tests using contingency tables?
Q2: Why is a test, which is testing significant differences among means called Analysis of Variance?
Q3: Why might a non-parametric test be used, in place of the One-Way ANOVA F-test, for testing the difference among several population means?
Comparison of paired and unpaired samples test - Identify which of the two tests (Independent samples and Paired samples) test is the preferred test and justify your choice.
Compute the expected number of barrels that will be sol on Saturday. (Answer to Whole numbers)
The total population of car passengers involved in traffic accidents are classified into six categories: two factors (one with 2 levels and one with 3 levels) crossed.
The researchers planned to use simple linear regression to see if the age at which a baby was first able to crawl could be predicted from the average outdoor temperature six months after each baby's birthdate.
A library checks out an average of 250 books per day, with a standard deviation of 75 books. If a sample of 36 days of operation is selected and the sample mean is computed,
Determine the probability that employee will make 28 or more sales during 100-call shift? Allocate a Random Variable x.
The lifetime of a light bulb is an Exponential RV with a mean of 800 hours. Let L represent the time (in hours) that one randomly selected light bulb will burn. What is the possibility the light bulb burns for more than 1000 hours.
Suppose a restaurant business succeeds 60% of the time. Suppose that there are three such restaurants open in your city. When they don't compete with one another, it is reasonable to believe that their relative success would be independent.
Compute the coefficient of determination, r 2 , and interpret its meaning.
Which of these variables are discrete and which are continuous random variables?
In an analysis of variance problem involving 3 treatments and 10 observations per treatment, SSE = 399.6. The MSE for this situation is:
If 64 students were randomly sampled, the probability that the sample mean of the sampled students exceeds 73.5 minutes is approximately 0.
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