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In a random sample of 328 florida public school employees, 231 were female. write a 95% confidence interval for the proportion of the population of florida public school employees that are female.
Management plans to sample 150 packages per week. What is the appropriate control chart?
Create a 90% confidence interval for true mean amount of cholesterol in chicken eggs.
You wish to do a community needs assessment survey of a community to find out how much office space is needed by professionals in the community.
30 said that they planned to work in a rural community. Find a 95% confidence interval for the true proportion of all medical students who plan to work in a rural community.
A standard deviation of $20, obtain the probability that a monthly landline phone bill for a household is less than $100.
Total housing costs as a percent of monthly income, five years ago and now. The information is reported below. Is it reasonable to conclude the percent is less now than five years ago?
The dean of the Western College of Business must plan the school's course offerings for the fall semester. Students demands make it necessary to offer at least 30 undergraduate and 20 graduate courses in the term. Faculty contract also dictate tha..
Chicken Delight claims that 84 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 70 orders revealed that 55 were delivered within the promised time.
Many newspapers carry a certain puzzle in which the individual must unscramble letters to form words. How many ways can the letters of YARNLE be arranged?
Normally distributed with mean equal to 15,000 and standard deviation equal to 1000. What is the lowest income among the richest 250 persons?
College students are a major target for advertisements for credit cards. At a university, 65% of students surveyed said they had opened a new credit card account within the past year. If that percentage is accurate, how many students would you exp..
The industry standard suggests that 10% of new vehicles require warranty service within the first year. Jones Nissan in Sumter, South California, sold 12 Nissans yesterday. What is the probability that none of these vehicles require warranty servic..
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