According to the WHO MONICA Project the mean blood pressure for people in China is 128 mmHg with a standard deviation of 23 mmHg. Blood pressure is normally distributed. Suppose a sample of size 25 is taken.

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According to the WHO MONICA Project the mean blood pressure for people in China is 128 mmHg with a standard deviation of 23 mmHg. Blood pressure is normally distributed. Suppose a sample of size 25 is taken. 

d) Find the mean of the sampling distribution of the sample mean.
Put the numeric value in the first box and the correct units in the second box.
e) Find the standard deviation of the sampling distribution of the sample mean.
Put the numeric value rounded to two decimal places in the first box and the correct units in the second
box.
f) What is the shape of the sampling distribution of the sample mean?
Select an answer
Why? Check all that apply:
On is at least 30
On is less than 30
population is normal
o is unknown
population is not normal
Oo is known
g) Find the probability that the sample mean blood pressure of the 25 randomly selected people in China is
less than 136.9 mmHg.
Round final answer to 4 decimal places.
DO NOT use the rounded standard deviation from part e in this computation.
Use the EXACT value of the standard deviation with the square root.
Transcribed Image Text:d) Find the mean of the sampling distribution of the sample mean. Put the numeric value in the first box and the correct units in the second box. e) Find the standard deviation of the sampling distribution of the sample mean. Put the numeric value rounded to two decimal places in the first box and the correct units in the second box. f) What is the shape of the sampling distribution of the sample mean? Select an answer Why? Check all that apply: On is at least 30 On is less than 30 population is normal o is unknown population is not normal Oo is known g) Find the probability that the sample mean blood pressure of the 25 randomly selected people in China is less than 136.9 mmHg. Round final answer to 4 decimal places. DO NOT use the rounded standard deviation from part e in this computation. Use the EXACT value of the standard deviation with the square root.
h) Find the probability that the sample mean blood pressure of the 25 randomly selected people in China is
more than 137.32 mmHg.
Round final answer to 4 decimal places.
DO NOT use the rounded standard deviation from part e in this computation.
Use the EXACT value of the standard deviation with the square root.
i) Is a mean blood pressure of 137.32 mmHg unusually high for 25 randomly selected people in China?
Select an answer
j) If you found a mean blood pressure for a sample of 25 people in China as high as 137.32 mmHg, what
might you conclude?
Select an answer
Transcribed Image Text:h) Find the probability that the sample mean blood pressure of the 25 randomly selected people in China is more than 137.32 mmHg. Round final answer to 4 decimal places. DO NOT use the rounded standard deviation from part e in this computation. Use the EXACT value of the standard deviation with the square root. i) Is a mean blood pressure of 137.32 mmHg unusually high for 25 randomly selected people in China? Select an answer j) If you found a mean blood pressure for a sample of 25 people in China as high as 137.32 mmHg, what might you conclude? Select an answer
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