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Problem: Statistics students at a state college compiled the following two-way table from a sample of randomly selected students at their college:
Play chess Don't play chess Male students 25 162 Female students 19 148
Answer the following questions about the table. Be sure to show any calculations.
a. How many students in total were surveyed?
b. How many of the students surveyed play chess?
c. What question about the population of students at the state college would this table attempt to answer?
d. State Hº and Hª for the test related to this table.
Based on these sample data, what should Cooper's engineers conclude about the production output if they test using an a = 0.01? Discuss.
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To try to illustrate how effective the Ishikawa diagram can be, focus on one particular problem that you are having in your studies.
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Association. Suppose you were to collect data for each pair of variables. You want to make a scatterplot. Which variable would you use as the explanatory.
the mean of a normal probability distribution is 60 the standard deviation is 5. refer to the table in appendix a.1.
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in an analysis investigating the usefulness of pennies the cents portions of 100 randomly selected credit card charges
Given the following waiting time distribution in a hotel, compute the expected value of the waiting time in 2 dec pl.
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