It is a korean folk song used as a smbol of korea ang its culture

What can you conclude if data from a study agree with the result predicted by the hypothesis? a. the data must contain systematic errors. b. the data show that the hypothesis could be true. c. the data are unrelated to the hypothesis. d. the data prove that the hypothesis is false.

The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1. which statement is true if we are testing the null hypothesis at the 95% confidence level? a. the difference of the two means is significant, so the null hypothesis must be rejected. b. the difference of the two means is significant, so the null hypothesis must be accepted. c. the difference of the two means is not significant, so the null hypothesis must be rejected. d. the difference of the two means is not significant, so the null hypothesis must be accepted.

Which of the following occurred just before the current era?