A random sample of male employees is taken at the end of a year and the mean
number of hours of absenteeism for the year is found to be 63 hours. A similar
sample of 50 female employees has a mean of 66 hours. Could these samples be
drawn from a population with the same mean and standard deviation of 10 hours?
(Use α = 5%)
Like two situations where systematic sampling is appropriate. Justify your choice
of situations. Also explain how it is different from stratified sampling. Justify
Assuming that it is true that 2 in 10 industrial accidents are due to fatigue, find the
probability that exactly 2 of 8 industrial accidents will be due to fatigue.
Dear Helene Catillaz, please use the panel for submitting new
questions.
Helene Catillaz
18.11.20, 18:53
I struggle to understand how you get to 0.00179 and 0.001195. for the
question Consider a sample of ten randomly selected employees an
auditing firm. The probability that three employees is this sample
have and honours degree is 0.215 while the probability that four
employees’ in this sample have an honours degree is 0251. Determine
the probability that at least two employees in this sample have an
honours degree. Please explain to me
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Dear Helene Catillaz, please use the panel for submitting new questions.
I struggle to understand how you get to 0.00179 and 0.001195. for the question Consider a sample of ten randomly selected employees an auditing firm. The probability that three employees is this sample have and honours degree is 0.215 while the probability that four employees’ in this sample have an honours degree is 0251. Determine the probability that at least two employees in this sample have an honours degree. Please explain to me
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