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It is known that 62% of households in a neighborhood have cable TV. A sample of 8 houses was selected at random. Assuming that this procedure yields a binomial distribution, find the mean and the standard deviation for the number of househ10. Refer to Question 9. If in a sample of 8 houses selected at random only 3 houses had cable TV, can it be considered an unusually small number? Justify your answer.olds in this sample who have cable TV.
Print Media Advertising (PMA) has been given a contract to market Buzz Cola via newspaper ads in a major southern newspaper. Full-page ads in the weekday editions (Monday through Saturday) cost $2000, whereas on Sunday a full-page ad costs $8000.
A poll found that 69.9% of citizens felt the government was not working well. If 7 people were randomly selected, what is the probability that all 7 felt the government is not working well?
The annual income of a large group of supervisors at Belco Industries follows the normal distribution. The mean amount earned yearly is $48,000 and the standard deviation is $1,200.
What is the null hypothesis? Use α =0.05. Compute critical value. Use α =0.05.
What is the probability that the percentage in the sample will deviate from the population percentage by no more than 7 percentage points?
Find the mean and standard deviation for the batting average for a player in the most recently completed MBL season. What batting average would separate the top 5% of all hitters from the rest?
For the following cases, determine whether the sampling is dependent or independent. Explain your conclusion.
researchers studied the effects of adding an exercise program to dieting in the achievement of weight loss. a sample of
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In a slow year, Deutsche Burgers will produce 2 million hamburgers at a total cost of $3.5 million. In a good year, it can produce 4 million hamburgers at a total cost of 4.5 million.
statistics is about more than calculations. it is about turning data into information and using this information to
a 95 confidence interval for a population mean u is given as 18.958 21.015. this confidence interval is based on a
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