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1. The average monthly cot for a studio apartment in NYC is reported to be $1,000. You want to prove that average monthly rent is not what is stated. You collect a random sample of 25 rents in all areas and find that the sample mean is $961 and the sample standard deviation is $110. Can you disprove the claim at the  = .05 level if normality is assumed?
Medical Malpractice - An important issue facing Americans is the large number of medical malpractice lawsuits and the expenses that they generate.
At 5% level of significance, is true mean smaller than specification? Clearly mention your hypotheses and decision rule.
The mean number of passengers per cruise is 1,820 and the standard deviation is 120.
Managers at Beta Technologies, Inc., have collected current annual salary figures and potentially related data for a random sample of 52 of the company's full-time employees.
Chi-square test for independent of attributes - A random sample of students is interviewed to determine if there is an association between class and attitude toward corporations?
Rob Johnson is a product manager at Diamond Chemicals, which is considering whether to launch a new product line that will require it to build a new facility.
Critically discuss the reasons for studying statistics? Choose five random numbers between 70-100. Calculate the mean, and midrange of these numbers.
Determine the probability in big class that both sections are covered? Only one section? Neither section? Determine the expected number of sections covered?
each person received was determined by randomization. For each person who was sent one of the surveys, the researcher recorded whether or not a completed survey was returned.
Perform a two-tailed hypothesis test on both the intrinsic and the extrinsic variable's data, using a .05 significance level. Begin by creating a null and an alternate statement.
Testing equality of variances - evidence of a difference in the variability of monthly talking time on cell phones for men and women?
Which component of a time series is most likely to occur? Which component has a pattern that must be complete in a single year and repeat from year to year?
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