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1. Find a peer-reviewed article that provides an example of a study where the researchers utilized linear regression. Briefly describe the study and discuss its findings in your own words.
2. Find a peer-reviewed article that provides an example of a study where the researchers utilized a one sample chi-square OR a two sample chi-square. Briefly describe the study and discuss its findings in your own words.
The airline must sell 150 seats to break even on this particular flight. On what percent of the flights does the airline make money?
Verify value of t for the independent Variable, using formula. (That is, using formula in the Formula Sheet compute the t statistic , given data provided in the print out).
Find the sample size required. A pilot study showed that the population standard deviation is estimated to be 0.09 g
Mention the critical value of test statistic (Or give the p-value of the test.)
Finding the probability selecting a defective item from a collection of items using tree diagram
Determine the strength of the causal relationship between monthly sales and new home construction by using correlation.
Assume you choose 20 houses at random. On average, how many houses of twenty would you expect to have DVD? Determine standard deviation of number of houses with DVD?
Bougainvilleas, mean growth rate was 2.23 inches/week and sample standard deviation was 0.77 inches/week. Determine a 90% confidence interval for mean growth rate of all Bougainvilleas.
The assembly time for a product is uniformly distributed between 6 to 10 minutes.
Show that someone will think that the claim has more than a fifty percent chance of being true if p > q / (1 + q). Explain.
As it is a 2 _ 2 table, try also two-tailed two-sample z test for ð1 = ð2 and verify that z2 is same as your chi-square statistic. Which test do you favour? Describe why?
What is the probability that a student who has failed the test came from the South District?
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