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A local school district wants to survey parents about their attitudes toward the elimination of the marching band program as a way to save money. The school district sampled 120 parents and found 74 supported the plan to cut the band program.
A. Find the standard error of the proportion
B. Find the 95% confidence interval for the population of the proportion
Suppose that a mortality table used to calculate reserves is altered. Explain how the reserves will be affected, for whole life policies with a constant death benefit and level premiums.
A large construction firm estimates that 25% of the jobs that it manages are not completed within the contracted time period. It looks at a random sample of 8 jobs that it has managed. a. What is the probability that less than 3 of the jobs were ..
The number of hurricanes that are formed during each hurricane season can be modeled using the Poisson probability distribution. History suggests that the average if number of hurricanes formed during a year is 6.0 hurricanes.
What is the optimal solution if the annual return for U.S. Oil changes from $3 to $8 per share (everything else stays the same)? What is the value of the total return?
prepare a report for the dean of the college that summarizes your assessment of the nature of cheating by business
Is there a relationship between sales and newspaper advertising? Support your answer?
rain is forecast half the time in a certain region during a given time period. we estimate that the weather forecasts
Using thesedata, perform a simple regression analysis to predict the price of a digital camera using the number of effective megapixels. Interpret the slope term and state whether it is consistent with the buyer's prior belief.
Suppose five balls are distributed into three urns according to the Bose-Einstein scheme. Find the probability that at least one urn contains three or more balls.
the brightness of a television picture tube can be evaluated by measuring the amount of current required to achieve a
you are picking a bouquet of 20 flowers for your mother at random from a garden with 25 coneflowers 35 daisies and 42
Is there evidence to suggest that smoking causes a low birth weight? Test the claim at the 1% significance level and clearly state your conclusion. Follow all the test steps in hypothesis testing
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