For each of the following, state which two populations are being compared, state
ID: 3204637 • Letter: F
Question
For each of the following, state which two populations are being compared, state the research hypothesis, state the null hypothesis, and say whether you should use a one-tailed or two-tailed test and why. In an experiment, people are told to solve a problem by focusing on the details. Is the speed of solving the problem different for people who get such instructions compared to the speed for people who are given no special instructions? Based on anthropological reports in which the status of women is scored on a 10-point scale, the mean and standard deviation across many cultures are known. A new culture is found in which there is an unusual family arrangement. The status of women is also rated in this culture. Do cultures with the unusual family arrangement provide higher status to women than cultures in general? Do people who live in big cities develop more stress-related conditions than people in general? Based on the information given for each of the following audio, decideExplanation / Answer
13.i.
A] Two populations: People who get instructions and People who do not get instructions
B] Research Hypothesis: Ha: The speed of solving the problem is different for people who get such instructions and who are given no special instructions.
C] Null hypothesis: H0: The speed of solving the problem is same for people who get such instructions and who are given no special instructions.
D] Two tailed test because alternative hypothesis consist of ‘’ .
13.ii.
A] Two populations: Women in two cultures
B] Research Hypothesis: Ha: The status of women in unusual family arrangement has higher average status than cultures in general.
C] Null hypothesis: H0: There is no significant difference in the status of women in unusual and general cultures of family arrangement.
D] One tailed test because alternative hypothesis consist of ‘>’.
13.iii.
A] Two populations: People in big cities and people in general
B] Research Hypothesis: Ha: People in big cities develop more stress related conditions than the people in general.
C] Null hypothesis: H0: There is no significant difference in the average stress in the people of big cities and people in general.
D] One tailed test because alternative hypothesis consist of ‘>’.
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