Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are normally...

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Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are normally...

Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are normally distributed with a standard deviation of $1500, find:

B) the probability that a student makes between $13,000 and $14,000.

(C) the interquartile range for the salaries.

(D) the salaries belonging to the 10th and 90th percentiles. (Be sure you calculate both values!)

Can you also please provide the equations needed? would be a big help thank you. Also, would this type of question be binomial, geometric, hypergeometric, Poisson, normal, or a standard normal.

math Statistics-And-Probability

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Answer 1

Answer #1

solution :- Х Normally distributed L L = x-1 ***** 4 =12837 o=150o B) Pl 13000 <Xc14000) 13000 - 12837 150o 14000-12837) PG C

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Answer 2

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Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are normally...

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