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Assume that a sample is drawn and z(a/2) = 1.65 and s = 35. Answer the following questions:(A) If the Maximum Error of Estimate is 0.05 for this sample, what would be the sample size?(B) Given that the sample Size is 400 with this same z(a/2) and s, what would be the Maximum Error of Estimate?
Based on this information, determinethe probability that specific fare will exceed $15.00?
Standard deviation of 0.7 years. If you randomly purchase one item, what is the probability it will last longer than 13 years?
What size random sample should you take if you want to estimate the annual salary in the population with 99 percent confidence and a maximum margin of error of $250?
It will take 30 minutes regardless of the traffic conditions. Lynn's utility for travel time is: U(15 minutes) = 0.9, U(30 minutes) = 0.7, and U(40 minutes) = 0.2. Which route will minimize Lynn's expected travel time?
A researcher wishes to estimate with 99% confidence, the proportion of adults who have high-speed Internet access. Her estimate must be accurate within 2% of the true proportion.
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages. (a) At the .01 level of significance, is the true mean greater than 10? (b) Use Excel to find the..
Given the consumer is 18 to 24 years old, what is the probability that the consumer uses a plastic card? Given the consumer is over 24 years old, what is the probability that the consumer uses a plastic card?
State the formula for the test statistic and show your decision rule using the 1 percent level of significance. (c) Carry out the test. Show your work. (d) What assumptions are required?
Sixty percent of the families in a certain community own their own car, thirty percent own their own homes, and twenty percent own both their own home and own car. If a family in the community is randomly chosen, what is the probability that they ..
Twelve students randomly selected from the entering class of college had the following SAT scores in math and English population mean=500, sigma=100
Shank's Inc., a nationwide advertising firm, wants to know whether the size of an advertisement and the color of the advertisement make a difference in the response of magazine readers.
Explain probability distribution of X (name and parameters).
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