Answer Happy

Use the following information to answer Q 18 - Q21
The age at which men in United States marry for the first timefollows the normal distribution with a mean μ= 26.8years with the standard deviation of thedistribution σ= 4.5 years. If one married man isselected at random,
Question 20 find the age of men such that 80% of them were married for the first time by that age, P80, P(x <d) = 0.8000 O 34.6 O 30.6 O 32.6 O 25.6 Question 21 O 0.0842 If a group of 60 men was randomly selected, find the probability that the mean age at which they were married for the first time was less than 26,P (x - bar < 26) O 0.5435 3 points O 0.6274 O 0.4673 3 points