Find a value of weight x

Assignment Help Basic Statistics
Reference no: EM132150427

A study indicates that the weights of adults are normally distributed with a mean of 140 lbs and a standard deviation of 25 lbs.

Find a value of weight x such that only 20% of adults weigh less than that.

A. 136

B.190

C.177

D.23

E.10

Looking for an explanation on how to complete.

Reference no: EM132150427

Questions Cloud

Interpret the meaning of this confidence interval : Interpret the meaning of this confidence interval. If you only had a sample of 10 theaters instead of 50, would a confidence interval still be appropriate? Why
Poisson distribution with a mean : Suppose the number of tickets written per day follows a Poisson distribution with a mean of 6.5 tickets per day. Interpret the value of the mean.
Distribution of income is highly and positively skewed : It is well known that the distribution of income is highly and positively skewed, but the one-sample z test is based on critical values obtained from a standard
Conduct a one-sample z-test to answer : Conduct a one-sample z-test to answer the question above. Report hypotheses
Find a value of weight x : Find a value of weight x such that only 20% of adults weigh less than that.
What proportion of shampoo bottles contain : What proportion of shampoo bottles contain less than the marked quantity? Assume a normal distribution.
What is the probability that a randomly selected employee : What is the probability that a randomly selected employee is a woman and is in favor of a four-day work week?
What is the density of norway maple trees : a. What is the density of Norway Maple trees in the Glen Arboretum per hectare?
Sample distribution on individual iq scores : What proportion of the sample mean will fall at or above a mean of 102.56? Round the answers to no more than 2 decimal places

Reviews

Write a Review

Basic Statistics Questions & Answers

  Translate statements into symbolic form- motion pictures

Translate the following statements into symbolic form using capital letters to represent affirmative English statements.- If motion pictures contain subliminal sex messages or if they challenge the traditional family, then conservative politicians ..

  A may 2007 gallup poll found that only 11 of a random

a may 2007 gallup poll found that only 11 of a random sample of 1003 adults approved of attempts to clone a human.find

  Edwards hometown forks washington is usually very cloudy

edward and his friends cannot go outside when it is sunny because they are vampires. edwards hometown forks washington

  Find the mean and median of the given sets of numbers

The final exam scores for 15 students are 73, 74, 92, 98, 100, 72, 74, 85, 76, 94, 89, 73, 76, 99. Compute the mean and median.

  Tukey sample problem for statistics students

We wish to determine whether the homicide rate is different in different parts of the country and, if it is different, what is the pattern. We have data on 36 states - 9 each in the four regions Northeast, Midwest, South and West.

  Find an 85 confidence interval for the mean weights of the

below are the records on the weights of adult grey wolves from two regions in the soutwestchihuahua region grey wolf

  A random sample of six cars from a particular model has the

a random sample of six cars from a particular model has the following fuel consumption figure in miles per gallon 18 16

  Plasma core to develop in a forming star

What events take place that cause the plasma core to develop in a forming star?

  Normal populations with unknown means and variances

The data in the table below is a random sample of 15 observations each from two normal populations with unknown means and variances. Test the null hypothesis that the two population means are equal against the alternative that μY > μX . First assu..

  Example on probability distribution

The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about

  Is the standard deviation of histogram around five value

Description of the graph:A given histogram: normal distribution bell curve that is skewed to the left. On the x-axis of the graph, from left to right have the following numbers 0 , 50, 100.

  Describe binomial distribution

A Discrete random variable can be described as Binomial distribution if is satisfies four conditions, Briefly discuss each of these conditions

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