normal distribution, Basic Statistics

Assignment Help:

Lifts usually have signs indicating their maximum capacity. Consider a sign in a lift that reads “maximum capacity 1400kg or 20 persons”. Suppose that the weights of lift-users are normally distributed with a mean of 65kg and a standard deviation of 10kg.

(a) What is the probability that a lift-user will weigh more than 70kg?

(b) What is the probability that a lift-user will weigh between 60 and 75kg?

(c) What is the probability that 20 people will exceed the weight limit of 1400kg?

(d) What is the probability that 25 people will not exceed the weight limit (Use Excel to
calculate probability to 6 decimal places)?

Related Discussions:- normal distribution

Standard error of the differnce between means., IN two separate studies, th...

IN two separate studies, the actual difference between the means of a treated group and untreated group is 3 points. However, in one study sm1-m2 is very large and so the 3 points

Bartlett test, what are the statistics hypotheses for bartlett''s test for ...

what are the statistics hypotheses for bartlett''s test for exponential distribution?

What is the margin of error, The National Quality Research Center at the Un...

The National Quality Research Center at the University of Michigan provides a quarterly measure of consumer opinions about products and services (The Wall Street Journal, February

Source of economic growth and development, Question 1: (a) Describe the...

Question 1: (a) Describe the factors that contributed to the adoption of structural adjustment programme by a majority of Least Developed Countries in the 1980s? (b) Describ

Capitalization policy, Capitalization policy The criteria used to decide w...

Capitalization policy The criteria used to decide which capital outlays should be reported as capital assets on the whole state are financial statements,

Cost accounting, what is the relationship of cost accounting to financial a...

what is the relationship of cost accounting to financial and management accounting?

What is the net book value of a noncurrent asset, What is the net book valu...

What is the net book value of a noncurrent asset? The net publication value of a noncurrent resource is the net quantity revealed on the stability piece for a long-term resourc

Example, solving problem in skewness and kurtosis?

solving problem in skewness and kurtosis?

quality, HOW I CAN WORK UPON EWMA CHART

HOW I CAN WORK UPON EWMA CHARTS?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd