What is used to analyze sample data in order to make conclusions about a population? a. hypotheses b. ranges c. inferential statistics d. standard deviations

2with a manual transmission, the speed of thevehicle determines

Who is the presiding officer of the senate whenever the vice-president is not present? speaker of the house attorney general secretary of state president pro tempore

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.