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At a large block party there are 40 men and 30 women. You want to ask opinions abouthow to improve the next party. You choose at random 4 ofthe men and separately choose at random 3 of the women tointerview.(a) What is the probability that any of the 40 men is in yourrandom sample of 4 men to be interviewed? What is the p robabilitythat any of the 30 women is in your random sample of3 women to be interviewed?(b) If you have done the calculations correctly in part (a),the probability of any person at the party being interviewedis the same. Why is your sample of 7 men and women not anSRS of people from the party?
The monthly cost of a long distance phone plan in dollars is a linear function of the total calling time in minutes. When graphed, the function gives a line with a slope of 0.11.
A representative of the environmental protection agency (EPA) wants to select samples from 10 landfills. The director has 15 landfills from which she can collect samples.How many different samples are possible?
your company produces metal rods. they are required to be exactly 100cm long. from a quick survey you find that in a
A SRS of size 16 drawn from a Normally Distributed population has a mean of 30 and a standard deviation, s, of 5. With 95% confidence, what is the interval that captures the true mean of the population?
Compute the population mean, the population median, the population midrange, the population range, the population variance, the population standard deviation, and the population proportion of odd numbers. Verify the following results:
the human resources department of a consulting firm gives a standard creativity test to a randomly selected group of
Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 0.04 with 98% confidence?
What happens to the boundaries for the critical regions?
Determine if there is evidence to conclude that the mean number of vacations taken by married individuals is less then the number taken by single/divorced individuals using data in Excel file vacation survey.
The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50 with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the follo..
Determine fraction of employees cost between $1,500 and $2,000 per year?
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