Instructions: Choose the number of the correct statistical procedure (test) for
ID: 3155897 • Letter: I
Question
Instructions: Choose the number of the correct statistical procedure (test) for the problem listed below. Use the information to set up the appropriate null hypothesis and give the type of the response variable. Choices of tests include:
1-sample z-test about a proportion (1)
1-sample t-test about a mean (2)
2-sample z-test about two proportions (3)
2-sample t-test about two independent means (4)
paired t-test about average difference of two means (5)
Nonparametric test about medians (6)
t-test about a slope of a regression line (7)
Chi-square test (8)
Does the average age at which one starts to date depend on whether or not you believe in love at first sight? The average “started to date” age for 13 students who said they did not believe in love at first sight was 14.6 yrs., whereas the average “started to date” age for 16 saying, yes, they do believe in love at first sight, was 15.1 yrs.
Explanation / Answer
Test number (4) 2-sample t-test about two independent means is correct statistical test
Reason:
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The null hpothesis : There is no difference in the average age at which one starts to date for the students who beleive in love at first sight and the students who do not beleive in love. Or simpler terms the age at which on starts to date does not depend on beleive in love at first sight
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The response variable is average age at which one starts to date. It is a continuous numerical variable.