MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Concept explainers

Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear re…
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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answer #3 only. thanks
Solve the following problems by hypothesis testing. Run a two-tailed test on the following data using a = 0.05. The average heights of a random sample of 100 entering HRM freshman of a certain college is 157 cm with a standard deviation of 8 cm. Test the data against the claim that the overall height of all entering HRM students is 160 cm. Previous studies showed that o = 5 cm. A random sample of n = 25 is taken from a normally distributed population with a mean u = 80 and standard deviation o = 5. If X = 78 and s = 3.6, is there a significant difference between the means? Use a = 0.05. 3. The principal of a school claims that 30% of Grade 3 pupils stay in the playground after their classes. A survey among 500 Grade 3 pupils revealed that 150 of them stay in the playground after their classes. Use 95% confidence level to conduct a test of proportions.
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Transcribed Image Text:Solve the following problems by hypothesis testing. Run a two-tailed test on the following data using a = 0.05. The average heights of a random sample of 100 entering HRM freshman of a certain college is 157 cm with a standard deviation of 8 cm. Test the data against the claim that the overall height of all entering HRM students is 160 cm. Previous studies showed that o = 5 cm. A random sample of n = 25 is taken from a normally distributed population with a mean u = 80 and standard deviation o = 5. If X = 78 and s = 3.6, is there a significant difference between the means? Use a = 0.05. 3. The principal of a school claims that 30% of Grade 3 pupils stay in the playground after their classes. A survey among 500 Grade 3 pupils revealed that 150 of them stay in the playground after their classes. Use 95% confidence level to conduct a test of proportions.
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