1) The average score of all golfers for a particular prob 39- course has a mean of 76 and a standard deviation of 3. Suppose 36 golfers played the course today. Find the probability that the average score of the 36 golfers exceeded 77. A) 0.0228 C) 0.1293 tha 59? B) 0.4772 D) 0.3707 2) Assume that blood pressure readings are normally distributed with a mean of 122 and a standard deviation of 9.6. If 144 people are randomly selected, find the probability that their mean blood pressure will be less than 124. A) 0.9998 C) 0.9938 B) 0.8615 D) 0.0062 3) Furnace repair bills are normally distributed with a mean of 263 dollars and a standard deviation of 25 dollars. If 100 of these repair bills are randomly selected, find the probability that they have a mean cost between 263 dollars and 265 dollars. B) 0.5517 D) 0.2881 A) 0.2119 C) 0.7881 4) Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the aternoon shift 5% of all welds done will Smith checks 300 welds thift, what tis the p e than 20 s ubstand A66 10.40 100934

Question

1,2, and 3

1) The average score of all golfers for a particular
prob
39-
course has a mean of 76 and a standard
deviation of 3. Suppose 36 golfers played the
course today. Find the probability that the
average score of the 36 golfers exceeded 77.
A) 0.0228
C) 0.1293
tha
59?
B) 0.4772
D) 0.3707
2) Assume that blood pressure readings are
normally distributed with a mean of 122 and a
standard deviation of 9.6. If 144 people are
randomly selected, find the probability that their
mean blood pressure will be less than 124.
A) 0.9998
C) 0.9938
B) 0.8615
D) 0.0062
3) Furnace repair bills are normally distributed
with a mean of 263 dollars and a standard
deviation of 25 dollars. If 100 of these repair bills
are randomly selected, find the probability that
they have a mean cost between 263 dollars and
265 dollars.
B) 0.5517
D) 0.2881
A) 0.2119
C) 0.7881
4) Smith is a weld inspector at a shipyard. He
knows from keeping track of good and
substandard welds
that for the aternoon shift
5% of all welds done will
Smith checks 300 welds
thift, what
tis the p
e than 20 s
ubstand
A66
10.40
100934
Expand
Transcribed Image Text

1) The average score of all golfers for a particular prob 39- course has a mean of 76 and a standard deviation of 3. Suppose 36 golfers played the course today. Find the probability that the average score of the 36 golfers exceeded 77. A) 0.0228 C) 0.1293 tha 59? B) 0.4772 D) 0.3707 2) Assume that blood pressure readings are normally distributed with a mean of 122 and a standard deviation of 9.6. If 144 people are randomly selected, find the probability that their mean blood pressure will be less than 124. A) 0.9998 C) 0.9938 B) 0.8615 D) 0.0062 3) Furnace repair bills are normally distributed with a mean of 263 dollars and a standard deviation of 25 dollars. If 100 of these repair bills are randomly selected, find the probability that they have a mean cost between 263 dollars and 265 dollars. B) 0.5517 D) 0.2881 A) 0.2119 C) 0.7881 4) Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the aternoon shift 5% of all welds done will Smith checks 300 welds thift, what tis the p e than 20 s ubstand A66 10.40 100934

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