Researchers call position (a) null hypothesis (symbolized H0). Researchers call position (b) alternative hypothesis (symbolized Ha). A researcher customizes the hypotheses to a study, using symbols and information about the specific study.

Indicate your research hypotheses (null and alternative), incorporating the appropriate symbols. [To answer this question, you need, in part, to look at the research scenario.]

State what the hypotheses mean. [Some overlap may exist with your answer to # 1. These are related rather than mutually exclusive questions.]

Research:

Investigatiors in Britan collected car crash data on how many people get in accidents Friday the 13th, the day deemed to be superstitious, versus a regular Friday the 6th car accidents to compare whether Friday the 13th can actually bring bad luck.

Friday the 6th

Friday the 13th

139,246

138,548

134,012

132,908

137,055

136,018

133,732

131,843

123,552

121,641

121,139

118,723

128,293

125,532

124,631

120,249

124,609

122,770

117,584

117,263

 

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