sample of n 25 participants produces a mean difference of MD 3 with a standard deviation of s 4. Based on the mean and standard deviation, you should be able to visualize (or sketch) the
6. a. A repeated-measures study with a sample of n 25
participants produces a
with a standard deviation of s 4. Based on the
mean and standard deviation, you should be able to
visualize (or sketch) the sample distribution. Use a
two-tailed hypothesis test with .05 to
determine whether it is likely that this sample came
from a population with μD 0.
b. Now assume that the sample standard deviation is
s 12, and once again visualize the sample
distribution. Use a two-tailed hypothesis test with
.05 to determine whether it is likely that this
sample came from a population with μD 0.
Explain how the size of the sample standard
deviation influences the likelihood of finding a
significant mean difference.
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