Four samples from a normal distribution (the same samples used in Worksheet 3)
... Worksheet #4 Working with normal data We go back to the simulated normal data in worksheet #3, and apply the various techniques we have been looking at. ...
... Worksheet #4 Working with normal data We go back to the simulated normal data in worksheet #3, and apply the various techniques we have been looking at. ...
Session #6 - Inferential Statistics & Review
... • An established probability level which serves as the criterion to determine whether to accept or reject the null hypothesis • It represents the confidence that your results reflect true relationships • Common levels in education • p < .01 (I will correctly reject the null hypothesis 99 of 100 time ...
... • An established probability level which serves as the criterion to determine whether to accept or reject the null hypothesis • It represents the confidence that your results reflect true relationships • Common levels in education • p < .01 (I will correctly reject the null hypothesis 99 of 100 time ...
(s/sqrt(n)) - People Server at UNCW
... value of the sample mean (Xbar). • The standardization involves subtracting the mean of Xbar and dividing by the standard deviation of Xbar – recall that – Mean of Xbar is m ; and – Standard deviation of Xbar is s/sqrt(n) ...
... value of the sample mean (Xbar). • The standardization involves subtracting the mean of Xbar and dividing by the standard deviation of Xbar – recall that – Mean of Xbar is m ; and – Standard deviation of Xbar is s/sqrt(n) ...
Final Exam Review 2007
... 10 students are selected at random from the physics majors, what is the probability that no more than 6 belong to an ethnic minority? ...
... 10 students are selected at random from the physics majors, what is the probability that no more than 6 belong to an ethnic minority? ...
Solutions
... The “t Critical two-tailed” refers to a 5% significance, and we see that we would not reject at this level. In fact, this being a 2-tailed test, a p-value of 6.7% means that the lowest significance at which we would reject the Null Hypothesis would be twice this value, or 13.4% – an unusually high c ...
... The “t Critical two-tailed” refers to a 5% significance, and we see that we would not reject at this level. In fact, this being a 2-tailed test, a p-value of 6.7% means that the lowest significance at which we would reject the Null Hypothesis would be twice this value, or 13.4% – an unusually high c ...
1 - CBSD.org
... 38. A researcher wished to compare the effect of two stepping heights (low and high) on heart rate in a step-aerobics workout. A collection of 50 adult volunteers was randomly divided into two groups of 25 subjects each. Group 1 did a standard step-aerobics workout at the low height. The mean heart ...
... 38. A researcher wished to compare the effect of two stepping heights (low and high) on heart rate in a step-aerobics workout. A collection of 50 adult volunteers was randomly divided into two groups of 25 subjects each. Group 1 did a standard step-aerobics workout at the low height. The mean heart ...
