The times that NSU students spend studying per week have a distribution that is skewed to the right with a mean of 6.8 hours and a standard deviation of 1.9 hours. a) Calculate the mean and standard deviation of y when the sample size is i. 25 ii. 45 b) Find the probability that the mean time spent studying per week for a random sample of 45 students would be between 5 .5 and 10.5 hours indicating the scaling and label of both axes.

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The times that NSU students spend studying
per week have a distribution that is skewed to
the right with a mean of 6.8 hours and a
standard deviation of 1.9 hours.
a) Calculate the mean and standard deviation
of y when the sample size is
i. 25 ii. 45
b) Find the probability that the mean time
spent studying per week for a random sample
of 45 students would be between 5 .5 and
10.5 hours indicating the scaling and label of
both axes.
Transcribed Image Text:The times that NSU students spend studying per week have a distribution that is skewed to the right with a mean of 6.8 hours and a standard deviation of 1.9 hours. a) Calculate the mean and standard deviation of y when the sample size is i. 25 ii. 45 b) Find the probability that the mean time spent studying per week for a random sample of 45 students would be between 5 .5 and 10.5 hours indicating the scaling and label of both axes.
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