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

Need help, PART 1 Shown below are the sales revenue and advertising cost da...

PART 1 Shown below are the sales revenue and advertising cost data for seven companies published by International Advertising Age. COMPANY ADVERTISING ($ MILLIONS) SALES ($ BILLION

Statsgraphic , need to define one statistic and calculate value

need to define one statistic and calculate value

International accounting standards board-iasb, IASB -International Accounti...

IASB -International Accounting Standards Board : IASB is an independent body based in London, which is responsible for setting accounting standards. IASB started operations in the

Mean and standard deviation, We have two applicants who are applying for a ...

We have two applicants who are applying for a job. They both took the high school exit exam, but different ones. Shannon took the ACT and scored 26, Frank took the SAT scored 1350.

Acceptance region, Acceptance Region A term related with the statistical...

Acceptance Region A term related with the statistical signi?cance tests, which provides the set of values of a test statistic for which the null hypothesis cannot rejected. Supp

Role of accountant, What are the roles of accountant, let me know the caree...

What are the roles of accountant, let me know the career opportunity in accounting subject?

Define Agency solutions , Define Agency solutions Every condition agency,...

Define Agency solutions Every condition agency, office, board, commission, department, condition organization, or condition organization of degree, which includes all condition u

Employer''s fica tax rate for 2012, Employer's FICA tax rate for 2012 Th...

Employer's FICA tax rate for 2012 The employer's FICA tax amount for 2012 involves 1) the Public Protection tax amount of 6.2% of each individual's first $110,100 of income, inc

Cumulative frequency, how would we find cumulative frequency for the median...

how would we find cumulative frequency for the median of discrete series

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