Police Academy Acceptance Exams To qualify for a police academy, applicants are given a test of physical fitness. The scores are normally distributed with a mean of 60 and a standard deviation of 13. If only the top 25% of the applicants are selected, find the cutoff score. Round z-value calculations to 2 decimal places and the final answer up to the nearest whole number. Cutoff score= X S

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Police Academy Acceptance Exams To qualify for a police academy, applicants are given a test of physical fitness. The scores are normally distributed with a
mean of 60 and a standard deviation of 13. If only the top 25% of the applicants are selected, find the cutoff score. Round z-value calculations to 2 decimal
places and the final answer up to the nearest whole number.
Cutoff score=
X
Ś
Transcribed Image Text:Police Academy Acceptance Exams To qualify for a police academy, applicants are given a test of physical fitness. The scores are normally distributed with a mean of 60 and a standard deviation of 13. If only the top 25% of the applicants are selected, find the cutoff score. Round z-value calculations to 2 decimal places and the final answer up to the nearest whole number. Cutoff score= X Ś
Ages of Passenger Cars The average age of passenger train cars is 19.4 years. If the distribution of ages is normal and 7% of the cars are older than 21.3
years, find the standard deviation. Round z-value calculations to 2 decimal places and final answer to 2 decimal places.
The standard deviation must be
years.
X
Ś
Transcribed Image Text:Ages of Passenger Cars The average age of passenger train cars is 19.4 years. If the distribution of ages is normal and 7% of the cars are older than 21.3 years, find the standard deviation. Round z-value calculations to 2 decimal places and final answer to 2 decimal places. The standard deviation must be years. X Ś
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