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Question: We are interested in the proportion of UoI students who smoke. A random sample of n = 400 UoI students is taken. The proportion of smokers in this random sample is 0.25.
Calculate a 95 percent confidence interval for the unknown proportion of smokers among the UoI student population.
Suppose that a random sample of 200 adults found that 110 thought there is too much violence on television. Is this enough evidence to reject the claim? What do we want to know?
Student A transfers to FSU and has a cholesterol reading of 199. What is the probability of observing a cholesterol reading of 199 or less?
Determine the probability that the project will be completed in 80 days or less.
What type of test is described below and can you provide the null and alternate hypothesis? Using an old manufacturing process.
Chi-square test for independent of attributes - A random sample of students is interviewed to determine if there is an association between class and attitude toward corporations?
Is the sample size adequate for the accuracy requirements?
three people who do not know each other are standing in line at a movie theatre waiting for the box office to open.
A manager receives a forecast for next year. Demand is projected to be 600 units for the first half of the year and 900 units for the second half.
The weight of the first orange minus the weight of the second orange) is a random variable with standard deviation and individual outcomes are uncertain but happen in a predictable manner through time.
In 2010, 65% of adult Americans thought that the death penalty was morally acceptable. In a poll conducted by the Gallup Organization, a simple random sample of 1005 adult Americans
When a customer places an order with Office Works, a computerised Accounting Information System (AIS) automatically checks to see if the customer has exceeded his or her credit limit. Past records indicate that the probability of customers exceeding ..
What are the assumptions regarding an ANOVA test and what Excel aid would you use to perform the test, Data Analysis or MacDoIt? What are the assumptions regarding a Chi-square test?
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