QUESTION 5: Assume that the readings on the thermometers are normally distribute

Question

QUESTION 5:

Assume that the readings on the thermometers are normally distributed with a mean of0° and standard deviation of 1.00°C. Assume 2.8% of the thermometers are rejected because they have readings that are too high and another 2.8% are rejected because they have readings that are too low. Draw a sketch and find the two readings that are cutoff values separating the rejected thermometers from the others Click to view page 1 of the table. Click to view page 2 of the table. Which graph represents the region in which thermometers are rejected? Choose the correct graph below. O A O B O C. O D · · · . The cutoff values are degrees. (Use a comma to separate answers as needed. Round to two decimal places as needed.)

Explanation / Answer

Ans:

P(Z<=z)=0.028

z=-1.91

P(Z>=z)=0.028

P(Z<=z)=1-0.028=0.972

z=1.91

Option A is correct.

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