Please provide me an answer and explaination of how you cameto that conclusion.

Question

Please provide me an answer and explaination of how you cameto that conclusion. Thank you
1. A recent study of 200 students showed that monthlyexpenses of SABA University students on entertainment has a mean of$40, and range of $120. What is the approximate value ofstandard deviation for the students' expenses on entertainment ifnormally distributed?
a) $80
b) $20
c) $30
d) cannot be determined
2. The average expenses of a sample of 200 patients whowere hospitalized at RWJ Hospital in New Brunswick is $4429. The standard deviation for these patients is
a) less than $400
b) at least $200
c) between $0 and $200
d) can't be determined Please provide me an answer and explaination of how you cameto that conclusion. Thank you 1. A recent study of 200 students showed that monthlyexpenses of SABA University students on entertainment has a mean of$40, and range of $120. What is the approximate value ofstandard deviation for the students' expenses on entertainment ifnormally distributed? a) $80 b) $20 c) $30 d) cannot be determined 2. The average expenses of a sample of 200 patients whowere hospitalized at RWJ Hospital in New Brunswick is $4429. The standard deviation for these patients is a) less than $400 b) at least $200 c) between $0 and $200 d) can't be determined

Explanation / Answer

1) d. cannot be determined 2) d. can't be determined

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