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1. A raffle offers a first prize of $500, and two second prizes of $50 each. One ticket costs $2, and 1000 tickets are sold. Find the expected winnings for a person who buys one ticket.
2. In a survey of 25 patients who smoked, the following data was obtained. Each value presents the number of cigarettes the patient smoked per day. Construct a frequency distribution table which consists of six class limits, frequency, relative frequency, and cumulative frequency.
4 21 10 23 11 13 2 8 13 9 12 36 6 17 18 15 16 14 19 14 15 11 25 28 29
Fifty raffle tickets are numbered 1 throughout 50, and one of them is drawn at random. What is the probability that the number is a multiple of 5 or 8? Consider the following "solution": Since 10 tickets bear numbers that are multiples of 5 and 6 ..
If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?
How much time should the employer allow employees to finish the job? (Round up to the nearest minute).
If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 2nd floor?
What is the expected value and variance for the number of contacts in eight attempts?
One thing you have learned is that the tangency portfolio will give you the maximum Sharpe ratio. Consequently, you have constructed such a portfolio. What are you portfolio weights.
If wages were increased by $1.00, what is the expected effect on the number of complaints received per employee? How can you tell?
The results of the simple linear regression are provided below.
To test the given claim using Single Proportion Z test.
Make use of Excel to determine the right-tail p-value.
Estimating a linear regression equation to predict the future values of the dependent variable Y.
Find a 95 percent confidence interval for the population mean concentration of uric acid in this patients blood. The concentration of uric acid in this patient's blood.
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