The random variable, number of customers entering a store between 9 AM and noon, is an example of a discrete random variable.
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Q. 2In a one-way analysis of variance test, the following null and alternative hypotheses are appropriate:H0 : 1 = 2 = 3 H : 1 2 3
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Q. 3The State Department of Weights and Measures is responsible for making sure that commercial weighing and measuring devices, such as scales, are accurate so customers and businesses are not cheated.
Periodically, employees of the department go to businesses and test their scales. For example, a dairy bottles milk in 1-gallon containers. Suppose that if the filling process is working correctly, the mean volume of all gallon containers is 1.00 gallon with a standard deviation equal to 0.10 gallon. Based on this information, if the department employee selects a random sample of n = 9 containers, what is the probability that the mean volume for the sample will be greater than 1.01 gallons?A) 0.3821
B) 0.1179
C) 0.6179
D) 0.2358
Q. 4If a random variable is discrete, it means that the outcome for the random variable can take on only one of two possible values.
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Q. 5The following is an appropriate statement of the null and alternate hypotheses for a test of a population mean:H0 : < 50HA : > 50
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Q. 6The Olsen Agricultural Company has determined that the weight of hay bales is normally distributed with a mean equal to 80 pounds and a standard deviation equal to 8 pounds.
Based on this, what is the mean of the sampling distribution for if the sample size is n = 64?A) 80
B) 10
C) Between 72 and 88
D) 8
Q. 7The only two types of random variables are discrete and continuous random variables.
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Q. 8Under the basic logic of one-way analysis of variance, if the within variation is large relative to the between variation, it is an indication that the population means are likely to be different.
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