Aresearcher was interested in studying americans email habits. she suspected that americans spend less than 7 hours a week answering their email. the general social survey in 2004 included a question that asked about the number of hours that the respondent spend on email per week. the general social survey in 2000 asked 783 respondents this question. the sample mean number of hours was 5.54 and the sample standard deviation was 7.23. find the test statistic.

What specific science discipline do most social engineering attacks rely on when they are being used?

When analyzing the election of 1876, what conclusion can be drawn? a. a majority of northerners wanted to enforce reconstruction policies more stringently. b.if tilden had won the electoral votes from louisiana, florida, or south carolina, he would have been elected president. c.the republican party had increased its support in the south. d.rutherford hayes did poorly in the western states. e.the republican party did a good job protecting the voting rights of african-americans in mississippi.

How have the changes in china's laws affected its economy?