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You recorded the time in seconds it took for 8 participants to solve a puzzle. These times appear below. However, when the data was entered into the statistical program, the score that was supposed to be 22.1 was entered as 21.2. You had calculated the following measures of central tendency: the mean, the median, and the mean trimmed 25%. Which of these measures of central tendency will change when you correct the recording error?
Developing the histogram and pie chart for the sample data.
Develop a joint probability table for these data. If a student goes full time, determine the probability that school quality is first reason for selecting a school?
A game involving a pair of dice pays you 3 with probability 17/36, costs you 2 with probability 14/36, and costs you 4 with probability 5/36. What is your probability of losing money in one play of the game?
The mean of a normal probability distribution is 60; the standard deviation is 5.
Provide a brief description of the main features of these data from the scatter plot and Describe why you would use performance as the predictor variable and performane related pay as the dependent variable in such a model.
Tavern has budget of $2,000 for beer for Super Bowl Sunday. Betty desires to find out number of gallons of each brand of beer to order so as to maximize profit. Create a linear programming model for this problem.
In comparing two variances below, determine test value and what are degrees of freedom that must be used?
Create a histogram over five class intervals.
Solve the equations using linear algebra
How large a sample should be taken if the desired margin of error E is:
Are the events "Republican" and "30-44" independent? Justify your answer. Are the events "Democrat" and "65+" independent? Justify your answer.
Probability values based on normal distribution - old exit exam followed a normal distribution
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