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

What is Nuclear holocaust, Nuclear holocaust It is the name given to large...

Nuclear holocaust It is the name given to large scale destruction and devastation that would be caused by the use of nuclear weapon. The radioactive waste will hang like a cloud i

Linear modelling, what is a difference between a linear model and a linear ...

what is a difference between a linear model and a linear model

Interpretation or analysis of financial statements, Interpretation or Analy...

Interpretation or Analysis of Financial Statements. Financial report research (or financial analysis) the procedure of comprehension the possibility and earnings of an organizat

Cat, charlie removes the 12 face cards from a standard deck of cards then s...

charlie removes the 12 face cards from a standard deck of cards then shuffles the face cards together on their own. He selects 2 cards from the pile. The probability that the first

Driver''s test, what are commonly missed driver''s test questions?

what are commonly missed driver''s test questions?

Exploratory analysis of the data, The Home Improvement Company (HIC) operat...

The Home Improvement Company (HIC) operates five stores in a large regional area. The company wished to study the relationship between x, house value ($'000) and Y, yearly expendit

Estimate the population mean flying time for the pilots, The mean number of...

The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month (The Wall Street Journal, February 25, 2003). Assume that this mean was based on ac

Anova 1 and 2 way, ANOVA 1 and 2 way, t and f-tests 1,2 or more means... st...

ANOVA 1 and 2 way, t and f-tests 1,2 or more means... standard deviations known/unknown. I have a project where I must use these tests, but I''m not clear on the when and how.

Balance sheet-actual reserves , (a)   The bank's excess reserves are its ac...

(a)   The bank's excess reserves are its actual reserves less required reserves. Actual reserves are given as $450 from its balance sheet. Required reserves are given by the produc

Process capability questions, Objective: Determine process capability The s...

Objective: Determine process capability The sandwich shop†TM s goal I that every sandwich can be completed in less than 1.5 minutes using the following 20 data times: 1.5364 1.58

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