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1. How does the goodness-of-fit test differ from the chi-square variance test?
2. How are the degrees of freedom computed for the goodness-of-fit test?
3. How are the expected values computed for the goodness-of-fit test?
4. When the expected frequencies are less than 5 for a specific class, what should be done so that you can use the goodness-of-fit test?
Calculate power of test if researcher uses a sample of n = 16 individuals.
find the following probabilities for a standard normal random variable z. note round your answers to four decimal
The following frequency distribution shows the time (in minutes) that a sample of students uses the computer terminals per day. Compute the coefficient of variation.
For what proportion of patients will drug be effective for between 2 and 2.25 hours?
You have been asked to develop a study of the effects of watching Sesame Street on childrens' gender role orientations, intelligence, or sociability.
a survey found that americans generate an average of 19.8 pounds of glass garbage each year. assume the standard
The Pew Research Center’s Social & Demographic Trends project found that 46% of U.S. adults would rather live in a different type of community than the one where they are living now (Pew Research Center, January 29, 2009). The national survey of 2260..
Write a brief summary report on the demographic and class distribution of this sample. Paste the tables and charts into your report and label each of them properly.
suppose a life insurance company insures the lives of 1000 men aged 30. if actuarial studies show that the probability
Each,day Monday through Saturday, a baker bakes three large chocolate cakes and those not sold on the same day are given away to a food bank.
The following table presents data on political party affiliation and class level for sample of students in certain university: If the student is selected at random from sample, determine the probability that student is Republican.
we want to estimate the mean population. a random sample of subjects is selected and the sample mean is computed. what
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