7.4.3.. Which of the following differenoo; is larger? Explain.
1.05.n - l.10.n or (JO,n - (15,11
7.4.4. A random sample of size n = 9 is drawn from a normal distribution with µ = V.6.
Within what interval ( -a , +a) can we expect to find y - 27·
of the time?
80% of the time? 90%
7.4.5. Suppose a random sample of size n = 11 is drawn from a normal distribution with
µ = 15.0. For what value of k is
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