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1.Fifty percent of the people that get mail-order catalogs order something. Find the probability that exactly two of 8 people getting these catalogs will order something.
Compute the sample mean and compute the sample variance and sample standard deviation - What is the average miles per gallon for city driving?
Given a business situation word problem or case study such as one dealing with processing time or quantity of fill, use the normal probability distribution to determine a course of action.
Chance of winning $100 or more on a type of casino slot machine is 2.3% when playing the maximum bet for one hour. A couple enters the casino and plays these machines for an hour. What is the chance that one of them wins $100 or more? What is..
Estimate the point of subjective equality (PSE) from the graph and estimate the upper threshold (UT) from the graph.
When is it appropriate to use stratified random sampling? What are strata, and how should strata be selected? When is cluster sampling used? Why do we describe this type of sampling by using the term cluster?
Perform a test of hypothesis to determine whether the variances of two populations are equal and describe the ANOVA approach for testing difference in sample means.
a study was conducted to determine the impact of social media use on student learning. a total of 103 students taking a
Use the Excel output in Figure 8.15 to calculate a t-based 95 percent confidence interval for m, the mean of the breaking strengths of all possible new trash bags.
A 1982 study indicated that 40% of young adults (18-25 years old) in the U.S. smoked cigarettes. In a later survey of 1500 young adults, 536 were found to be smokers. Do the data indicate that the smoking rate for young adults in the U.S. has decreas..
The recommended daily allowance (RDA) of cobalamine (Vitamin B12) for growing teens is 2.4 μg(micrograms). My brother takes it upon himself to make sure that everyone gets the message. It is generally believed that growing teens are getting less than..
Test the hypothesis that the preferences of office and line employees are the same. Use α = 0.05. Use α = 0.01. What is the p-value of this test?
Create a correlation table for the variables in our data set. Reviewing the data levels from week 1, what variables can be used in a Pearson's Correlation table (which is what Excel produces)
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