Question

The goal of this experiment was to determine whether there is a difference between the happiness obtained from “material” versus “experiential” purchases (following the study of Van Boven & Gilovich, 2003). For our purposes, we’ll treat the “material” group as the control group, and ask whether the “experiential” group differed in their happiness rating.

Again, the population mean was µ = 6.16 happiness, with standard
deviation σ = 1.71. We collected a **sample of n =
34** students in the “experiential” condition and found that
the sample mean M = 7.45.

A. *What is the standard error of the mean for this
experiment? SEM =*

If we use a two-tailed test, with α = 0.05, then what are the critical boundaries for finding a significant effect of material versus experiential happiness? (Hint: this depends on the criterion chosen by the researchers.)

*B. In order for the effect to be
significant,***Z must be greater
than ["-1.96", "-1.65", "1.65", "1.96"]
or less than ["-1.65",
"1.96", "-1.96", "1.65"]
.**

What are the means scores at these critical boundaries? That is,
what are the happiness scores on the border of being
significant?(Hint: you must use both the Z-scores you found above
*and* the standard error you computed just above.)

**C. The mean happiness score must be greater
than
[
Select ]
["6.64", "9.51", "6.73",
"6.60"] or less
than
[
Select ]
["5.59", "2.81", "5.68",
"-5.59"] .**

D. Based on your responses just above, was there a significant
effect? **That is, do “experiential” purchases lead to
significantly more or less happiness than “material”
purchases?**

**E.***What is Cohen's d
effect size?*

Answer #1

**Hope this was helpful. Please leave back any
comment.**

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