1) To what extent is blushing attractive? To help find out Pazda et al. (2016) a

Question

1) To what extent is blushing attractive? To help find out Pazda et al. (2016) asked male participants to look at photos of women. Each participant saw a photo of the same women, but one photo was manipulated to have redder checks. Each participant specified which photo they found most attractive, the one with extra red (1) or the unaltered original photo (0). Each participant rated 6 different pairs of photos. The researchers found that the redder photo was picked 72% of the time. They then used the NHST approach to test this result against a null hypothesis of 50%, which represents even preference. They found 132)-7.59,p

Explanation / Answer

a)

Concluding blushing is not attractive when it is.

b)

Concluding blushing is attractive when it is not

c)

132 represents degrees of freedom of the test statistic t

d)

In this case, population standard deviation is unknown. so we take t value rather than a z value

e)

p- value is less than 0.05. So this is a statistically significant finding

f)

p- value is less than 0.01. So this is a statistically significant finding

g)

At 5% level we reject Ho as p-value is less than 0.05

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