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Just before the mayoral election local newspaper polls 380 voters in the attempt to forecast the winner. Assume that candidate Johnny Comlatey has 53% of votes among all voters in two-way race. Probability that newspaper's poll of 380 voters would forecast Johnny Comlatey's opponent the winner is?
Bill calculates a linear correlation coefficient between two variable as 1.20. How would you interpret this?
You have been asked to help plan a data collection process to answer the two problem areas. Briefly outline a plan to: Collect qualitative data about how the current services are delivered
Fitting a straight line to a set of data yields the following prediction line: i=2+5xi
Insurance policy from company A costs $300 a year but guarantees to replace any losses due to theft. Create the decision tree.
Graph a relative frequency histogram for the 500 measurements summarized in the accompanying relative frequency table.
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.
Using the .02 level of significance, conduct a five-step hypothesis testing procedure to determine if the new processes significantly reduced the wait time.
Use α =.01 and test for a significant difference. What is your conclusion?
Find the mean number of radioactive atoms lost through decay in a day. Find the probability that on a given day, 50 radioactive atoms decayed.
The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity).
A restaurant monitors its customer's complaints, With information, which of the following is a Pareto chart of the data?
Compute the indicated confidence interval for the differenciate in proportions. Suppose that the samples are independent and that they have been randomly selected.
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