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Suppose a sample of 19 scores has a mean of 67.43. Two additional scores are added to the sample, with values of 64.4 and 28.8. What is the mean of the sample after the two new scores are added? Provide your response precise to two decimal places.
A regression of height (X, in inches) on hourly earnings (Y, in dollars), yields the following results: What is the value of b1 in the regression Y = b0 + b1X?
Descriptive statistics for given data - Evaluate the range, variance, and standard deviation of the data set. Interpret the results in the context of the real-life setting.
Use this information to determine the empirical probability that the next bird to visit the feeding station will be a dove.
Critically discuss the characteristics of integer programming problems. Provide specific instances in which you would use an integer programming model rather than an LP model. Provide real-world examples.
Due to all the unceratinties in government health care legislation, shouldice would like to justify any expansion within a five-year time period. How would I set this problem up?
A marketing firm asked a random set of married and single men as to how much they were willing to spend for a vacation. At *alpha*= .05, is a difference in the two amounts?
With a normal distribution of 50 and standard deviation of population =10, how do I figure out the score at the 40th percentile? How do figure out the % of scores falling above 70? How do figure out between what scores do the middle 50 percent of cas..
The trial failed to show significance. How many subjects would be required to detect the difference in proportions observed in the trial with 80% power?
question the mcdougal sandwich shop has two windows available for serving customers who arrive at a poisson rate of
Prof Hardtack gave three exams last semester in a large lecture class. The standard deviation = 7 was the same on all three exams, and scores were normally distributed.
Use empirical Rule to evaluate proportion of costs within 2 standards deviations of mean. Write down these limits.
Which of the 4 methods of data collection is involved when a person counts the number of cars passing designated location on the Los Angeles freeway system?
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