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Theorists maintain that the development of virtuous character requires the right sort of society and culture. What are the arguments for and against that claim?
Under new grading scale, how many students will have A's, B's, C's, D's and F's? Do you beleive the instructor must grade on a curve? Explain why or why not?
If 36 women are selected at random, find the mean, and standard deviation, of the population of sample means. Suppose that the sampling is done without replacement and use a finite population correction factor.
OHIP records show the average length of stay in Ontario hospitals is 5.4 days. A researcher sampled 125 patient records at US hospitals and found that the mean stay was 4.6 days
A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3.
Electricity is commonly traded at the California-Oregon border (COB) and Palo Verde (PV) in Arizona. Assume you take a sample of 100 daily electricity market closing prices (in $/megawatthour) from both COB and PV.
A random sample of 14 days shows Xbar = $502.95 and s = $64.00. You can assume normality. Using alpha = 4%, is the sampling result significant? Explain.
Suppose 80% of kids who visit a doctor have a fever, and 20% of kids with a fever have a sore throats. What's the probability that a kid who goes to the doctor has a fever and a sore throat?
a random sample of 100 doctors was selected. Suppose you reject the null hypothesis. What conclusion can you draw?
Test the teachers hypothesis that there is a significant difference between the pre and post tests.
What advantage does correlation have over a cross-tab?
Out of the 109 males, 42% preferred Pepsi and out of the 53 females, 40% preferred Pepsi. Pepsi wanted to test to determine if the males preferred Pepsi more than females.
Suppose sps professors have an average life normally distributed of 82 years, with a population standard deviation of 5 years.
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