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A confidence interval estimate for the population mean is given to be (35.55, 44.12). If the standard deviation is 15.797 and the sample size is 37, answer each of the following: (A) Determine the maximum error of the estimate, E.
Suppose you just received a shipment of eight televisions. Two of the televisions are defective. If two televisions are randomly selected, compute the probability that both televisions work. What is the probability at least one does not work?
Test the teachers hypothesis that there is a significant difference between the pre and post tests.
A recent election return indicated that 55% voted for a proposal, 40% voted against it, and 5% abstained. What is the probability that a voter either abstained or voted against the proposal?
A sustained long-term change in the level of the variable that is being forecasted per unit of time is: (A trend, A time series, Seasonality or A change due to business cycles)
In order to estimate the average time spent on the computer terminals per student at a local university, data were collected for a sample of 81 business students over a one week period.
Would it be sensible to conclude that more than 10% of applicants are now failing the test?
What is the probability that the average IQ, from a random sample of 64 individuals, is greater than 102?
Compute the 99% confidence interval for the percentage of packages that are delivered damaged in the population.
Critically evaluate the article by examining the worthiness of the survey. In your discussion, cover the following items: purpose of survey, why was it conducted, for who was it conducted, and was it based on a probability or nonprobability sample..
When someone buys a ticket for an airline flight, there is a 90% probability that a person will not show up for the flight. Air America books 15 people on a commuter flight that can only seat 13 passengers.
Given a normal distribution of data, we know from the Empirical Rule that in between 2 standard deviations from the mean
Assume that you go to the drive through window at Wendy's and place an order. Two friends of yours independently place orders at the drive through window at the same Wendy's.
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