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Use the following information In the movie "Limitless" an unsuccessful writer hears about this drug he can take to make him smarter. Scientist's developed a "smart drug" to increase intelligence. The population mean for intelligence is 100. A researcher samples 25 individuals to see if taking the drug makes these individuals smarter than the population. The scientists only measured the participants' intelligence scores after the drug was administered. The sample mean was 110 with a standard with a standard deviation of 20. Conduct the appropriate t test with an alpha level of .05. Which of the following is the correct null hypothesis? Ο μ > 100 O μ = 100 Ο με 100 O μ ≤ 100 Which critical t value marks the boundaries of the critical region? O-2.064 O +1.708 O 1.711 O 2.060 Compute the standard error of the mean. O 5.59 O 1.12 000 O 0.89 O 4.00 Compute the t statistic. O 0.50 O 1.79 O 2.50 O 5.59 What is the correct decision? O Fail to reject the null hypothesis O Reject the alternative hypothesis O Accept the null hypothesis O Reject the null hypothesis.

Use the following information In the movie "Limitless" an unsuccessful writer hears about this drug he can take to make him smarter. Scientist's developed a "smart drug" to increase intelligence. The population mean for intelligence is 100. A researcher samples 25 individuals to see if taking the drug makes these individuals smarter than the population. The scientists only measured the participants' intelligence scores after the drug was administered. The sample mean was 110 with a standard with a standard deviation of 20. Conduct the appropriate t test with an alpha level of .05. Which of the following is the correct null hypothesis? Ο μ > 100 O μ = 100 Ο με 100 O μ ≤ 100 Which critical t value marks the boundaries of the critical region? O-2.064 O +1.708 O 1.711 O 2.060 Compute the standard error of the mean. O 5.59 O 1.12 000 O 0.89 O 4.00 Compute the t statistic. O 0.50 O 1.79 O 2.50 O 5.59 What is the correct decision? O Fail to reject the null hypothesis O Reject the alternative hypothesis O Accept the null hypothesis O Reject the null hypothesis.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Use the following information In the movie "Limitless" an unsuccessful writer hears about this drug he can take to make him smarter. Scientist's developed a "smart drug" to increase intelligence. The population mean for intelligence is 100. A researcher samples 25 individuals to see if taking the drug makes these individuals smarter than the population. The scientists only measured the participants' intelligence scores after the drug was administered. The sample mean was 110 with a standard with a standard deviation of 20. Conduct the appropriate t test with an alpha level of .05. Which of the following is the correct null hypothesis? Ο με 100 μ = 100 Ο με 100 Ο με 100 Which critical t value marks the boundaries of the critical region? O -2.064 O +1.708 O 1.711 O 2.060 Compute the standard error of the mean. O 5.59 1.12 O 0.89 O 4.00 Compute the t statistic. O 0.50 O 1.79 O 2.50 O 5.59 What is the correct decision? O Fail to reject the null hypothesis O Reject the alternative hypothesis O Accept the null hypothesis O Reject the null hypothesis
Transcribed Image Text:Use the following information In the movie "Limitless" an unsuccessful writer hears about this drug he can take to make him smarter. Scientist's developed a "smart drug" to increase intelligence. The population mean for intelligence is 100. A researcher samples 25 individuals to see if taking the drug makes these individuals smarter than the population. The scientists only measured the participants' intelligence scores after the drug was administered. The sample mean was 110 with a standard with a standard deviation of 20. Conduct the appropriate t test with an alpha level of .05. Which of the following is the correct null hypothesis? Ο με 100 μ = 100 Ο με 100 Ο με 100 Which critical t value marks the boundaries of the critical region? O -2.064 O +1.708 O 1.711 O 2.060 Compute the standard error of the mean. O 5.59 1.12 O 0.89 O 4.00 Compute the t statistic. O 0.50 O 1.79 O 2.50 O 5.59 What is the correct decision? O Fail to reject the null hypothesis O Reject the alternative hypothesis O Accept the null hypothesis O Reject the null hypothesis
Compute the estimated Cohen's d. 4.00 0.50 2.24 O 2.50 Compute the proportion of variance explained by the dependent measure (r²). O 0.01 0.21 O 0.12 O 0.09 Compute the 90% confidence interval. O 103.16, 116.84 O 3.16, 16.84 100.00, 120.00 O 0.00, 20.00
Transcribed Image Text:Compute the estimated Cohen's d. 4.00 0.50 2.24 O 2.50 Compute the proportion of variance explained by the dependent measure (r²). O 0.01 0.21 O 0.12 O 0.09 Compute the 90% confidence interval. O 103.16, 116.84 O 3.16, 16.84 100.00, 120.00 O 0.00, 20.00
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