Math 534 Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about Math 534? On this page you'll find 350 study documents about Math 534.
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MATH 534 Week 6 Quiz (v1)
- Other • 6 pages • 2023
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MATH 534 Week 6 Quiz (v1) 
 
1.	Avalueof-1forthecoefficientofcorrelationbetweentwovariablesmeansthatthetwovariablesare	. 
2.	Ifthereis positivecorrelationbetweentwosets ofnumbers,then 
 
3.	If the correlation coefficient between variables X and Y is roughlyzero,then	. 
4.	Determine the Pearson product-moment correlation coefficient forthefollowingdata.
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MATH 534 Week 4 Homework Problems
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1.	Question: A random sample of 100 selected from a population with a standard deviation of 10 yielded a mean = 225. The mean and the standard deviation of the distribution of the sample means are __________. 
2.	Question: Suppose a random sample of 49 is selected from a population of size N = 500 with a standard deviation of 14. If the sample mean is 125, the 99% confidence interval to estimate the population mean is between ____________. 
3.	Question: A manufacturer wants to purchase a certain...
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MATH 534 Week 5 Quiz
- Exam (elaborations) • 9 pages • 2023
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1.	Question: In a hypothesis test, the test statistic computed from the sample data is considered extreme or significant if it is __________ 
2.	Question: A test of the hypotheses, H0: p = 0.18 and H1: p ≠ 0.18 is a _______________. 
3.	Question: An analyst tested the null hypothesis µ ≥ 30 against the alternative hypothesis that µ < 30. The analyst reported a p-value of 0.07. For what significance level of α will the null hypothesis would be rejected? 
4.	Question: The dean of a busi...
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MATH 534 Week 2 Discussion Changing Probabilities into Conditional Probabilities
- Other • 93 pages • 2023
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Week2:ChangingProbabilitiesintoConditionalProbabilities 
Describe a situationwhere youseeprobabilities or might see probabilities.Thenpresent this probability as a conditional probability. In response, other students canmake assumptions about the conditional probability table that could accompany such asituationandposeaquestionforaspecificprobability.Finally,athirdstudentcanshowthe work of solving the probability. Your first post should start a new probabilitydiscussiononly!
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MATH 534 Week 4 Discussion Confidence Intervals in Business Keller Devry University
- Other • 91 pages • 2023
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Consider when businesses might use confidence intervals to estimate values, such asin sales projections, marketing results, and so forth. Describe a business decision thatcould be helped with confidence intervals. Be specific! Then create a problem withnumbers from which another student could calculate a confidence interval and make adecision.
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MATH 534 Week 3 Homework Problems (v2) Keller
- Exam (elaborations) • 12 pages • 2023
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1.	Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is th 
2.	Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is th 
3.	Which one of the following is not a characteristic of a normal distribution?	 
X is normally distributed with mean 50 and standard deviation 4, what is P(45 < X < 58) ? 
7.	Suppose X is normally distributed with mean 20 and standard deviation 4, find the value x0 such that 
 
9.	I...
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MATH 534 Week 3 Homework Problems
- Other • 12 pages • 2023
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1.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the z-value for a score of 80? 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is the probability of obtaining a score less than 80? 
3.	Question: Which one of the following is not a characteristic of a normal distribution? 
4.	Question: If the z-value of a given x value is positive, it means that ___________. 
5.	Question: As...
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MATH 534 Week 4 Quiz
- Exam (elaborations) • 8 pages • 2023
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1.	Question: Suppose a random sample of 400 is selected from a population with a standard deviation of 5. If the sample mean is 25, the 98% confidence interval to estimate the population mean is between ________. 
2.	Question: The point estimate of the population mean is _________. 
3.	Question: Suppose a random sample of 50 is drawn from a population whose standard deviation is unknown. If the sample mean is 70 and the sample standard deviation is 5, the 92% confidence interval to estimate the ...
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MATH 534 Week 3 Quiz
- Exam (elaborations) • 8 pages • 2023
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1.	Question: Given a random variable X follows a Normal distribution with mean 10 and standard deviation 
2.	Question: Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. 
3.	Question: A normal distribution is defined by two parameters, the mean and the Standard Deviation 
4.	Question: If for a certain x value in a normal distribution with mean equal to 4 the z-value is such that Larger than 4 
5.	Question: Suppose X is normally distributed with mean 50 and ...
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MATH 534 Week 1 Quiz
- Exam (elaborations) • 8 pages • 2023
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1.	Question: Classify each of the following as nominal, ordinal, interval, or ratio data. 
2.	Question: The activity or the process of collecting the data on the population is called . 
3.	Question: A company wants to learn the customers’ purchase habits of buying certain products. This company did a survey about a random 1000 customers, who were asked about the times they purchased the certain products within one month. Then what is the data in this example: 
4.	Question: Researchers often wi...