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Question: Suppose that a polling organization is conducting a survey to estimate the proportion of Americans who regularly attend religious services. The organization plans to gather data from a randomly selected sample of 550 individuals. On the basis of the "conservative" estimate, what will be the margin of error for the survey?
STAT1060- Business Decision Making - Estimate the probability of this minimum number of Chargeable hours being achieved. Show your working. Do NOT use the computer to get a more accurate answer.
the amount of time in minutes devuted to commercials on a tv channel during any half-hour program is a random variable
A voltmeter is used to measure a known voltage of 100 V. Forty percent of the readings are within 0.5 V of the true value. Estimate the standard deviation for the meter.
Construct a frequency distribution and construct a histogram for the following data and use seven intervals, starting with 30-39.
in a certain noisy factory workers are provided with earplugs and are expected to wear them. an industrial hygienist
About to embark on a typical half-day trip, he has 6 passengers on board. What is the probability that there will be enough room below deck to accommodate those who become ill?
Identify the population parameter of interest in the survey. Give a point estimate of the population parameter. Set up H0 and Ha for testing whether the true percentage of TV viewers who find cable news to be better quality than network news differs..
The superintendent of a unified school district of a small town wants to make sure that no more than 5% of the students skip more than 10 days of school in a year.
Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using z test to test differences between two means?
What is the difference between a one-tail and a two-tail test? How do we identify each? What is meant by a p-value?
Based on the custom "rule-of-thumb" for estimating the standard deviation, if the range of prices for a product sold in Kansas City is between $99 and $349, an estimate of the standard deviation of the prices would be about:
assume that the number of networks errors experienced in a day on a local area network lan is distributed as a poisson
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