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Five hundred tickets are made at random with replacement from a box of numbered tickets; 276 are positive. someone tells you that 50% of the tickets in the box show positive numbers. Do you believe it? Answer yes or no, and explain.
Compute a 95% confidence interval for the population mean, based on the sample 32, 38, 31, 34, 35, 32, and 36. Change the number from 36 to 14 and recalculate the confidence interval. Using the results, describe the effect of an outlier or extreme..
Calculate the standard deviation of the number of available rooms in that sample. Use the central limit theorem to calculate and identify the sampling distribution of the sample mean.
Assume that sigma = 60, choose an alpha level, and perform a hypothesis test to determine whether this is good evidence to conclude that the mean score for all young men is less than 275.
Results from survey of 1000 respondents, point out that 545 favour the dealth penalty for capital crimes. By using a90% confidence level. Create confidence interval estimate for population proportion.
What is the maximum error of estimate for p ?
In a test of the independence of two variables, one the variables has two possible categories and the other has three possible categories.
If the opinion poll had announced the margin of error for 80% confidence rather than 95% confidence, this margin of error would be?
Two colored dice are tossed. What is the probability that the sum of the numbers shown on the upper faces is equal to 7?
How to determine the probability that a randomly selected player bats over 0.300? How to determine the probability that a team of 25 players will have a mean above 0.275?
Place a 95% confidence interval about the population mean number of down hours per month.
Select an industry with which you are familiar. Predict how future technology will inform, support, and potentially hinder productivity, culture, and work satisfaction within an organization in the industry.
The Food King Chain employs more than 3,000 people. The worker's ages are approximately normally distributed, with a mean of 31 years and a standard deviation of 4.3 years.
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