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Question: For this problem, you will open the SPSS sample file telco.sav and use the first variable, named "region" (labeled Geographic indicator). The variable "region" represents five different zones in which the 1,000 cases reside. The researcher believes that the cases are not equally distributed among the five zones. You are to write the null and alternative hypotheses and then study the variable "region" in an attempt to develop evidence in support of the researchers' hypothesis.
a board of directors consists of twelve men and five women. a four-member search committee is randomly chosen to
What is the probability that the next State of the Union Address will be more than 90 minutes long?- What is the probability that the next two State of the Union Addresses will be less than 30 minutes long?
Search the internet for a line, circle, or bar graph that either misrepresents the information being portrayed, is confusing, or doesn't do a good job representing the information. Copy and paste the graph below. Do not use graphs from other schoo..
(a) Calculate the actual average annual inventory turnover rate, with 90% confidence, for all convenience stores. (Use the z-table.) Interpret the result. (b) Compute (a) using Excel's NORMSINV formula to find the z-value. (c) Use Excel's CONFIDENCE ..
Using What's Best! (Or solver) find the least-cost matrix.
The next 6 are assigned to treatment B. The last 6 are assigned to treatment C. Do you see any problem with this strategy of assigning treatments to experimental units?
They find that these 100 people lost an average of 38 hours with a standard deviation of 9.5 hours. What is the P-value for this significance test?
explain the difference between the information given by a test of statistical significance such as chi square and a
If a sample of 10 Americans over the age of 55 is selected at random, find the probability that at most 2 have eaten pizza for breakfast. Use the binomial formula.
in establishing a set of hypotheses which we are testing we rely on the standard error. what two parameters are used to
State the direction of the alternative hypothesis for the test. Type gt (greater than), ge (greater than or equal to), lt (less than), le (less than or equal to) or ne (not equal to) as appropriate in the box.
When sampling is from a population with standard deviation µ = 55, using a sample of size n = 150, what is the probability that will be at least 8 units away from the population mean µ?
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