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In a recent poll of 750 randomly selected adults, 590 said that it is morally wrong to not report all income on tax returns. Use a .01 significance level to test the claim that 75% of adults say that it is morally wrong to not report all income on tax returns. Identify the null hypothesis, alternative hypothesis, test statistic, p-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the {-value method. Use the normal distribution as an approximation of the binomial distribution.
The null and alternative hypothesis are: _____
The test statistic is z=____
The P-value is ____
suppose that contamination particle size in micrometers can be modeled as fx 2x-3 for 1 gt x and fx 0for x lt 1.a
Find the expected value if the cost of entering this sweepstakes is the cost of a postage stamp. Is it worth entering the contest?
For the following situation, assume the random variable is normally distributed and use a normal distribution or a t-distribution to construct a 90% confidence interval for the population mean. If convenient, use technology to construct the confid..
Compute the appropriate test statistic to test Ho: p = 80/100 vs. Ha: p > 80/100.
Is this correlation statistically significant? He also found the regression coefficient to be -1.66. Is this regression coefficient statistically significant? Explain why or why not for each.
Suppose your company decided purchase 12 shrimp boats (Jenny 1 - Jenny 12). These boats are a fixed resource for the firm. What is the short run total cost of producing 60 tons of shrimp?
Determine the values of the slack and surplus variables and interpret them. Which constraints are binding constraints? Describe.
There are two ways to run the experiment. The first is to obtain a random sample of 12 drivers, divide them into two groups at random and assign one group to the standard light and the second group to the new light. Suppose the table below represents..
Dividend is expected to grow 7% a year for next 3 years and then at 5% a year after that. Determine the expected dividend per share for each of the next five years?
A researcher used stepwise regression to create regression models to predict BirthRate (births per 1,000) using five predictors: LifeExp (life expectancy in years), InfMort (infant mortality rate).
Determine the p-value, and at 95% confidence, test the hypotheses.
A government worker claims that the standard deviation of the mean weight of all US Postal Service shipments is 0.40 pounds. If a hypothesis test is performed, how should you interpret a decision
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