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A rainstorm in Portland Oregon wiped out the electricity in 5% of the households in the city. suppose that a random sample of 50 Portland households is taken after the rainstorm.
a) estimate the number of households in the sample that lost electricity by giving the mean of the relevant distribution
b) quantify the uncertainty of your estimate by giving the standard deviation of the distribution.
Scores by women on the SAT-I test are normally distributed with a mean of 998 and a standard deviation of 202. Scores by women on the ACT test are normally distributed with a mean of 20.9 and a standard deviation of 4.6.
What would be the 95% confidence interval for the temperature of your cup of coffee?
ken is interested in determining if there are differences between mens occurrence of obesity and prior football team
Given the following data on the number of pints of ice cream sold at a local ice cream store for a 6-period time frame:
We analyzed responses to the developmental screening form of the Survey of Well-being of Young Children from 41?465 screens across 3 states
Briefly explain how sample size affect outcome of hypothesis test. How does sample size affect measures of effect size?
alex hamilton founded hamilton marketing services in 1999 after leaving a major marketing consulting firm in chicago.
Alaska and Hawaii have very high yearly maximums relative to their daily maximums. Omit these two states as outliers.
The accompanying frequency distribution represents the square footage of a random sample of 500 houses that are owner occupied year round.
What is the maximum monthly lease revenue? How many of each of the type of stores should be constructed.
SAT verbal scores are normally distributed, with a mean of 500 and standard deviation of 100. You randomly select a test taker. What's the probability that s/he scored between 500 and 700?
OPINION POLLS A survey involving 400 likely Democratic voters and 300 likely Republican voters asked the question: Do you support or oppose legislation.
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