The average time spent on a homework assignment is 80 minutes with a standard deviation of 18 minutes. Assume times are normally distributed. Jim spent 102 minutes on a homework and found his Z score to be 1.22. What proportion of students spent less time than Jim on the homework? That is compute P(Z<1.22). Round your answer to 4 decimals.
The average time spent on a homework assignment is 80 minutes with a standard deviation of 18 minutes. Assume times are normally distributed. Jim spent 102 minutes on a homework and found his Z score to be 1.22. What proportion of students spent less time than Jim on the homework? That is compute P(Z<1.22). Round your answer to 4 decimals.
Chapter4: Linear Functions
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Transcribed Image Text:The average time spent on a homework assignment is 80 minutes with a standard
deviation of 18 minutes. Assume times are normally distributed. Jim spent 102
minutes on a homework and found his Z score to be 1.22. What proportion of
students spent less time than Jim on the homework? That is compute P(Z<1.22).
Round your answer to 4 decimals.
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