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In a given week, a lawyer spends 24 hours preparing for a case, 7 hours actually in court, and 3 hours consulting the client, and 6 hours in depositions. She gets paid $200 per hour for preparation, $240 per hour for hours spent in court, $150 per hour for consultations, and $210 per hour for depositions. What is her averages per hour for this week?
Find the distribution of the test statistic when the null hypothesis is true, and then show how to get a test size alpha= 0.10
Create a 95% confidence interval for true mean.
Construct a 95% Confidence Interval of the population mean of minutes exercised per week.
Critically illustrate out the range? What is the arithmetic mean income? What is the population variance?
Write three quadratic equations within a, b, c (coefficients of x^2, x and the constant as 1 integers, 2 rational, 3 irrational numbers).
A recent article in theWall Street Journal reported that the prime rate for large banks now exceeds 9 percent. A sample of eight small banks in the Midwest revealed the following prime rates (in percent):
She is interested in testing the null hypothesis that the mean SAT score is the same for each type of schooling using the one-way ANOVA. Some summary statistics for the three groups are given below, followed by the one-way ANOVA table.
Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 12 hours, with a standard deviation of 3.0 hours.
Construct a 95% confidence interval for the average amount its credit card customers spent on their first visit to the chain's new store in the mall assuming that the amount spent follows a normal distribution.
A coin is unbalanced such that it comes up tails 55% of the time. In an effort to prove that the coin is unfair, an experimenter flips the coin 50 times.
Summarize in words each of the following findings: The Tukey test was significant at .01 for two groups (A and E).
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