Do state laws that allow private citizens to carry concealed weapons result in a reduced crime rate? The author of a study carried out by the Brookings Institution is reported as saying, “The strongest thing I could say is that I don’t see any strong evidence that they are reducing crime” (San Luis Obispo Tribune, January 23, 2003).
a. Is this conclusion consistent with testing
H0: concealed weapons laws reduce crime versus
Ha: concealed weapons laws do not reduce crime or with testing
H0: concealed weapons laws do not reduce crime versus
Ha: concealed weapons laws reduce crime
Explain.
b. Does the stated conclusion indicate that the null hypothesis was rejected or not rejected? Explain.