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A company wants to know how many hours, on the average, it takes an employee to complete a self study course on ethics. A random sample of 100 employees produces an average of 7.9 hours with a standard deviation of 2.1 hours. At a 99% confidence level, what is the maximum error of estimate? Round your answer to 3 decimal places.
How do you set up SPSS to find descriptives for the perceived learning variable for each gender?
If campaign can be expected to also to rise the probability of best case scenario to 0.4, is it a good investment.
Describe the shape of the distribution? what proportion of the players had no hits? how many players had 4 or fewer hits? what percentage of the players had one or fewer hits?
PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inherited. About 75% of Italians can taste PTC
Suppose nothing in this environment changes. a) Compute the probability the mean number of attacks over the next 10 years is between 500 and 600.
Federal administration stated that unemployment level in US is 8.6% (population proportion = 0.086). A hypothesis test is to be performed to decide whether unemployment level in NY State differs from national level.
How many samples would be needed to create a 99 percent confidence interval that is within 0.02 of true proportion of premium grade fuel-quality failures.
it has been observed that some persons who suffer acute heartburn again suffer acute heartburn within one year of the
question the associated press reports that the mean trading volume for equity and index options contracts was 3.6
a 90 confidence interval for the difference between the means of two independent populations with unknown population
Choose any Markov Chain with a 3x3 transition matrix that is irreducible and aperiodic. The reason it needs to be irreducible and aperiodic is because we are looking for a Markov Chain that converges.
Let p represent the proportion of registered voters in the state that would vote for the Republican candidate. The standard error for the proportion of those who phoned in who answered "yes" is
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