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##### Use statdisk, excel or other tools to randomly generate data

**Description**

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**Question**

Use statdisk, excel or other tools to randomly generate data from a normally distributed population with a given mean and standard deviation.;A) Use this tool to randomly generate 5 values from a normally distributed population with a mean of 100 and a standard deviation of 15.;B) using the 5 sample values generated from part A. test the claim that the sample is from a population with a mean equal to 100. Use a 0.10 significance level.;C) repeat parts and B nine more times so a total of 10 different samples have been generated and 10 different hypotheses tests have been executed.;Use statdisk, excel or other tools to randomly generate data from a normally distributed population with a given mean and standard deviation. Generate two sets of sample data that represent simulated IQ scores as shown below.;IQ scores of treatment groups: Generate 10 sample values from a normally distributed population with mean 100 and standard deviation of 15.;IQ scores of Placebo Group: generate 12 sample values from a normally distributed population with a mean of 100 and standard deviation of 15.;A) After generating the two data sets use 0.10 significance level to test the claim that the two samples come from a population with the same mean.;B) if this experiment is repeated many times, what is the expected percentage of trials leading to the conclusion that the two population means are different? How does this relate to a type I error?;C) if your generated data should lead to the conclusion that the two population means are different, would this conclusion be correct or incorrect in reality? How do you know?;D) If part A is repeated 20 times what is the probability that none of the hypothesis tests leads to rejection of the null hypothesis?;E) Repeat part A 20 times. How often was the null hypothesis of equal means rejected? Is this the result you expected

Paper#67354 | Written in 18-Jul-2015

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