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There're several advantages of using a paired t-test. Since the same subjects are being tested in each of the varying conditions, those subjects serve as their own control. This is a major advantage as you need not consider potential differences between the subjects in the control group and the subjects who are in the experimental group. Elaborate on this concept by providing examples in which you do and do not have the same subjects serving as their own control.
There are also potential problems associated with interpreting the results of a paired t-test. Imagine you are interested in determining whether an employee of a company performs better with or without a bonus.
What are some issues that could affect the results if you have the same subjects tested in both situations?
The systolic blood pressure of a group of 18-year-old women is basically distributed with a mean of 120 mmHg and a standard deviation of 12 mmHg.
Using this information, calculate Blpha risk (probability of Type II error) if the true population mean really is 81.
One measure of the overall sampling error in the entire distribution of sample means is the
Do the data indicate that the sleeping pill is effective at a 1% level of significance?
P-value for test statistic is .085, determine the minimum level of significance needed to reject null hypothesis?
Using Chi-square table finding the P-value and interpret the result
A pinochle deck has 48 cards, two of each of six denominations (9, J, Q, K, 10, A) and the usual four suits. In a hand of 12 cards, what is the probability of getting a "bare" roundhouse, namely a king and queen of each suit and no other kings or ..
The number of girls who attend a summer basketball camp has been recorded for the seven years the camp has been offered.
Based on this data, give a 95% confidence interval for the average MAO activity level of bulimic patients. Assume that the level of MAO activity is normally distributed.
At.05 significance level is it reasonable to conclude that it takes longer to determination software issues? Determine the p-value?
Draw a normal probability plot for residuals using excel or Minitab. Do the residuals seem normally distributed? If yes, why?
Find out the area using Normal distribution. As, if Z is a standard normal variable find out the probability that Z lies.
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