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

Time series , what is the importance of time series

what is the importance of time series

Cost accounting, 1. ABC produces a single product. Material A is added at t...

1. ABC produces a single product. Material A is added at the start of production and Material B at the end. Conversion is uniform throughout. Inspection before Material B is added.

Calculate maximize total profit next quarter, Please show your work to rece...

Please show your work to receive credit for this question.. Harkin Electronics is planning its production next quarter for its two product lines, relays and capacitors.  The pro

Quartiles and percentiles, Quartiles and Percentiles Percentile can ...

Quartiles and Percentiles Percentile can be explained as : a measure this tells us what is the percent of the total frequency scored at or below the measure. Quartiles

Bond redemption, Bond redemption The regaining of control of bonds formerly...

Bond redemption The regaining of control of bonds formerly issued by expense of amount due to the owner.

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

Time quantization and amplitude quantization, A sine wave is sampled at int...

A sine wave is sampled at interval Tand quantixed using N=2bits precision over the range ±1. The sine wave has peroid τ, and T is chosed such that T = 1/8τ Plot one cycle of the

Survival analysis and regression for rates, This assignment counts for 40% ...

This assignment counts for 40% of the total grade for the subject.  There are 100 marks for the assignment.  Including figures and tables, it should be no more than 10 pages. Yo

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