Someone help with number 2! 2. Santos et al. (1994) described the pique techniqu

Question

Someone help with number 2! 2. Santos et al. (1994) described the pique technique. They claimed that people are more likely to comply with strange requests than with typical" ones, even if the strange request is larger To test this hypothesis, a researcher asked 160 strangers for money He asked some people if they could spare a quarter, and asked others if they could spare 37 cents. He then recorded how many people gave him the amount requested and how many people did not. Were people more likely to give the researcher 37 cents than they were to give him a 25 cents? Compute a Chi Square Test of Independence. Report and interpret your results including the value of chi square, degrees of freedom and statistical and practical significance The data is as follows: Whether or not the stranger gave the researcher the amount requested YES- Did give the $ NO Did not give the S 42 Amount Researcher Requested Asked for 25 cents 18 Asked for 37 cents 54 46 Observed Frequencies: YES-Did give the S 18 54 NO Did not give the S Row Total Asked for 25 cents Asked for 37 cents Column Total 46 Grand Total = Continued on next page Show your work here: Expected Frequencies (For each cell compute the following: row total x column total/grand total) YES-Did give the S NO Did not give the S Asked for 25 cents Asked for 37 cents

Explanation / Answer

DF = (2-1)*(2-1) = 1

chi-square

chi-square = 8.7273

critical value of chi-square = 3.84

Reject the null hypothesis.

This means there sufficient evidence to conclude that variable are not independent

Observed Yes Did give the $ No did not give the $ total Asked for 25 cents 18 42 60 Asked for 37 Cents 54 46 100 Total 72 88 160

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