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For the binomial sample information summarized below, indicate whether the sample size is large enough to use the large sample approximation to construct a confidence interval for p.
n = 50,^/p = 0.80
Is the sample large enough? Yes, or no and why?
Which component of a time series is most likely to occur? Which component has a pattern that must be complete in a single year and repeat from year to year?
Estimate with 90% confidence the difference in the level of satisfaction with service between the two branches.
Use the continuity correction and describe the region of normal curve that corresponds to the indicated binomial probability. The probability of more than 50 right answers.
What is the probability that no more than two of the three are commercial successes?
How large a sample is needed to find the population mean within $250 at 99 percent confidence?
Determine the point estimate in this study? Compute the standard error in this example?
Calculate the population mean and population standard deviation.
Can you conclude that information in article is untrue? Use 0.05 significance level. Find out p-value and explain its meaning.
Categorize the following as discrete or continuous random variables.
Are all the events in this distribution mutually exclusive? Describe in detail.
Does your analysis change if the term "average" refers to the mean? To the median? Explain what effect this misinformation might have on the perception of the nation's schools.
A certain firm specializing in the manufacture and sale of free time clothing has 80 retail stores in Florida and 140 in California. With each state as a stratum, the firm wishes to estimate average sick-leave time per employee for the past year
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