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Satisfaction survey. A cable provider wants to contact customers in a particular telephone exchange to see how satisfied they are with the new digital TV service the company has provided. All numbers are in the 452 exchange, so there are 10,000 possible numbers from 452-0000 to 452-9999. If they select the numbers with equal probability:
a) What distribution would they use to model the selec- tion?
b) What is the probability the number selected will be an even number?
c) What is the probability the number selected will end in 000?
a study of 35 browns gerbils showed that their average weight was 4.7 ounces. the standard deviation of the population
compute a one-sample t-test comparing the age of your sample to the age of the general population of college students
according to the internal revenue service income tax returns one year averaged 1332 in refunds for taxpayers with a
Select the appropriate word to identify whether the measurement represents a categorical variable or a quantitative variable: The average number of minutes a person watches television each day.
Another location if it meant a substantial promotion. Based on these findings, write a brief note to management regarding all executives in the firm.
Roll a die and record the count of spots on the up face: P(1) = 0, P(2) = 1/6, P(3) = 1/3, P(4) = 1/3, P(5) = 1/6, P(6) = 0.
The mean annual salaries paid to male and female employees of the company were EURO 32.000,- and 24.000,- respectively. Determine the percentage of males and females employed by the company.
Assuming a normal distribution, if 70 percent of the costs for tires is less than $171.00, what is the standard deviation? How is this calculated?
Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better? What is blocking and how does it reduce "noise"?
1. a local cable tv company with customers in 15 towns is considering offering high-speed internet service on its cable
Based on chi-square table, what is the most correct statement which can be made about the p-value for the test?
Scores on a scholastic aptitude test are normally distributed with standard deviation σ=100 points. A group of 25 inner city high school students takes the test; their mean scores is x-bar = 440 points.
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