Statistics: Z-test: Testing hypotheses – #29420


Question: A researcher is studying the effect of gender on attitudes towards the legalization of marijuana. He surveys a group of subjects regarding their attitudes (for or against) legalization and obtains the following results:

Male Female
FOR 15 5
AGAINST 5 15

a) State the appropriate null hypothesis for this study.

b) State the appropriate research hypothesis for this study.

c) Calculate the expected frequencies for each cell.

d) Compute the degrees of freedom.

e) Compute the chi-square value.

f) Based on your findings, in 1-2 paragraphs, provide a brief description of your results.

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