Answer:
The required range is 237.5 to 275.
Step-by-step explanation:
Consider the provided information.
The average cholesterol of the target population is 200 mg and they have a standard deviation of 25 mg.
The the value of μ = 200 and the
The company wished to test a sample of people who fall between 1.5 and 3 z-scores above the mean.
Let the value of z is 1.5.
Now use the z score formula:
Substitute the respective values in the above formula.
Now let the value of z is 3.
Substitute the respective values in the z score formula.
Hence, the required range is 237.5 to 275.