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A survey of 296 recent deliveries shows that 131 were delayed. Estimate the proportion of deliveries that are delayed. Find the standard error of the estimate. In recent comments there are complaints that say the proportion of deliveries that are delayed is at least 48% (or 0.48). You feel that the proportion is not that high. Perform the appropriate statistical test to determine whether the survey results are consistent with those comments. Assume a 5% significance level. What are the null and alternative hypotheses? Please show all work to find the test statistic, critical value, and p-value. What is your conclusion? Interpret your conclusion in the context of the problem.
suppose we watch the price of the dow jones industrial index for three days.assume there is a 6040 chance that the
A TV executive is interested in the popularity of a particular cable TV show. She has been told that a whopping 68% of American households would be interested in tuning in to a new network version of the show.
What conclusion should be made about the manager's claim? Next, find the p-value and explain its meaning - Is there evidence that there has been an increase in the proportion of companies with ethics codes?
Confidence interval for the population mean - Prepare a 99% confidence interval for the population mean.
In studying the performance of the company's stock investments over the past year, the research manager of a mutual fund company finds that only 43% of the stocks returned more than the rate that had been expected at the beginning of the year.
Explain how the power of hypothesis test is influenced by each of the following. Assume that all other factors are held constant. Increasing the alpha level from .01 to .05.
A sales analyst wants to determine whether there is a difference in the mean monthly sales of a company's four sales regions. Several salespersons from each region are randomly selected and they provide their sales amounts (in thousands of dollars..
What is the price of an extra dollar of c1 in terms of c2 and what is the equilibrium price? Output and profits of the low cost gold mine?
Discuss the actions a virtual team leader can take to reduce the possibility of team failure. Support your choices of actions with an appropriate rationale and cite references to support your answer.
In addition parking time variable collected by the administration is an example of a ___________ random variable and parking are variable is an example of a ____________ random variable.
a trial program is carried out to lower the recidivism rate of convicts that is the rate at which released prisoners
in a published study the author has presented a scatter plot of data with a line drawn through the data points. this
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