Chapter 7 Measuring of data
... The numeric codes assigned in nominal measurement do not convey quantitative information. If we classify males as 1 and females as 2, the numbers have no inherent meaning. The number 2 clearly does not mean “more than” 1. It would be perfectly acceptable to reverse the code and use 1 for females an ...
... The numeric codes assigned in nominal measurement do not convey quantitative information. If we classify males as 1 and females as 2, the numbers have no inherent meaning. The number 2 clearly does not mean “more than” 1. It would be perfectly acceptable to reverse the code and use 1 for females an ...
ANOVA & Regression
... statistically significant. You must always set a confidence level before determining if the p value is large enough to be statistically significant. Findings from small samples are unlikely to be significant unless there is a very strong relationship between two variables. ...
... statistically significant. You must always set a confidence level before determining if the p value is large enough to be statistically significant. Findings from small samples are unlikely to be significant unless there is a very strong relationship between two variables. ...
Math 1231—Fall 2012 Review Sheet for Exam #1 THIS IS NOT
... The list below is intended to highlight the important topics that have been covered so far in the course. However, any problem or topic that has been covered during lecture, on homework, or in the reading is considered a fair question on the exam, with specific exceptions listed below. You will need ...
... The list below is intended to highlight the important topics that have been covered so far in the course. However, any problem or topic that has been covered during lecture, on homework, or in the reading is considered a fair question on the exam, with specific exceptions listed below. You will need ...
DM Chapter 16 Test Review
... a. How large a sample do they need if they want to estimate the true population proportion that failed within 5% with 99% confidence? n = ___________ b. What would the margin of error be with this sample size if they only required 95% confidence? ME = _______________ 13. Suppose President Obama’s st ...
... a. How large a sample do they need if they want to estimate the true population proportion that failed within 5% with 99% confidence? n = ___________ b. What would the margin of error be with this sample size if they only required 95% confidence? ME = _______________ 13. Suppose President Obama’s st ...
Statistical Significance and Bivariate Tests
... • The P-value of the test statistic, is the area of the sampling distribution from the sample result in the direction of the alternative hypothesis. • Interpretation: If the null hypothesis is correct, than the p-value is the probability of obtaining a sample that yielded your statistic, or a statis ...
... • The P-value of the test statistic, is the area of the sampling distribution from the sample result in the direction of the alternative hypothesis. • Interpretation: If the null hypothesis is correct, than the p-value is the probability of obtaining a sample that yielded your statistic, or a statis ...
written sources of data
... – There are few values, and few scores, occurring which have a similar frequency • Median: – There are many ordinal values ...
... – There are few values, and few scores, occurring which have a similar frequency • Median: – There are many ordinal values ...
PPT
... • Conclusion: The test has provided evidence that the fertilizer caused the corn to grow more than if it had not been fertilized. The amount of actual increase was not large (1.36 inches over normal growth), but it was statistically significant. ...
... • Conclusion: The test has provided evidence that the fertilizer caused the corn to grow more than if it had not been fertilized. The amount of actual increase was not large (1.36 inches over normal growth), but it was statistically significant. ...
22.nonexp4 - Illinois State University Department of Psychology
... H0: mean of Group A = mean of Group B Alternative HA: mean of Group A ≠ mean of Group B (Or more precisely: Group A > Group B) ...
... H0: mean of Group A = mean of Group B Alternative HA: mean of Group A ≠ mean of Group B (Or more precisely: Group A > Group B) ...
PPT19
... The value of F will vary from zero to large values. If it is close to zero, then the null hypothesis is likely. If the F value above is large, the null hypothesis is unlikely. ...
... The value of F will vary from zero to large values. If it is close to zero, then the null hypothesis is likely. If the F value above is large, the null hypothesis is unlikely. ...