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Testing Claims about Variations: Assume that a simple random
Testing Claims about Variations: Assume that a simple random sample is selected from a normally distributed population. Use either the P-value method or the traditional method of testing hypotheses: W… read more
Ryan
Ryan
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Another hypothesis As part of your home work for an environmental
Another hypothesis As part of your home work for an environmental awareness group, you want to test the claim that the mean waste generated by adults in the country is more than 4 lbs per person per d… read more
Scott
Scott
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In a manual on how to have a number one song, it is stated
In a manual on how to have a number one song, it is stated that a song must be no longer than 210 seconds. A simple random sample of 40 current hit songs result in a mean length of 238.0 seconds and a… read more
Chirag
Chirag
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Test the following claim. Identify the null hypothesis, alternative
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, critical value, conclusion about the null hypothesis, and final conclusion that address the original cla… read more
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Scott
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At a jewery store, the probability for a customers to make
1.For the following statement, write the null hypothesis and the alternative hypothesis. Also label with one is the claim Company X claims that the average salary for an entry level employee is $35,00… read more
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Scott
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11. Assume that a hypothesis test of the given claim will be
11. Assume that a hypothesis test of the given claim will be conducted. Identify the type I or type II error for the test. A medical researcher claims that 6% of children suffer from a certain disorde… read more
Stevewh
Stevewh
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Use the M&Ms data to complete this assignment. You will be
Use the M&Ms® data to complete this assignment. You will be using the methods of 7.4 for the color proportions and 7.2 for the mean number of candies per bag. For the Bonus you will be using the metho… read more
SusanAthena
SusanAthena
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Randomly selected statistics students participated in an experiment
Randomly selected statistics students participated in an experiment to test their ability to determine when 1 min(or 60 sec) has passed. Forty students yielded a sample mean of 55.7. Assuming that sta… read more
Scott
Scott
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Compute the standardized test statistic, x2, to test the claim
Compute the standardized test statistic, x2, to test the claim: The known population s.d. less than or equal to 3.2 if n=20, s2=6.2, and a confindence level of 0.01… read more
Stevewh
Stevewh
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2. A 15-minute Oil and Lube service claims that their average
2. A 15-minute Oil and Lube service claims that their average service time is no more than 15 minutes. A random sample of 40 service times was collected, and the sample mean was found to be 16.4 minut… read more
Scott
Scott
MIT Graduate
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test the given claim using the traditional method of hypothesis
test the given claim using the traditional method of hypothesis testing. Assume that the sample has been randomly selected from a population with normal distribution. 1) use signifigance level of s=.0… read more
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Scott
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Master's Degree
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CD camera produces a new camera it claims can take an average
CD camera produces a new camera it claims can take an average of 7 photographs per second. A test of 49 randomly selected camera found a sample mean of 6.8 photos/sec. The population standard deviatio… read more
Chirag
Chirag
Master's Degree
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By measuring the amount of time it takes a component of a product
By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 1.8 seconds. Answer each of the fol… read more
Chirag
Chirag
Master's Degree
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1. By measuring the amount of time it takes a component of
1. By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 5.1 seconds. Answer each of the … read more
Stevewh
Stevewh
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Bachelor's Degree
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For Steve, For Steve. This is question 1 only the q invert
For Steve, For Steve. This is question 1 only the q invert after post become s . 1. A sample size of 60 is used to test Ho:u > or = 50 vs. Ha:u < 50. Given that and s = 5.0, answer the following… read more
Stevewh
Stevewh
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Bachelor's Degree
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1. An estimator is consistent if, as the sample size decreases,
1. An estimator is consistent if, as the sample size decreases, the value of the estimator approaches the value of the parameter estimated. ____ T/F 2. For a specific confidence interval, the larger t… read more
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Greg
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Question for Greg Michaelson DUE 3/23/09 Part I T/F & Multiple
Question for Greg Michaelson DUE 3/23/09 Part I T/F & Multiple Choice (20 points) 1. If ? is unknown when completing a hypothesis test about the population mean, then the best estimate for the unknown… read more
Greg
Greg
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Part I T/F & Multiple Choice (20 points) 1. If is unknown
Part I T/F & Multiple Choice (20 points) 1. If ? is unknown when completing a hypothesis test about the population mean, then the best estimate for the unknown standard deviation is s. _____ T/F 2. Th… read more
Greg
Greg
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