User Account

All Pages

Find the mean and standard deviation

Assignment Help Basic Statistics
Reference no: EM131099809

Suppose you have a distribution, X, with mean = 22 and standard deviation = 5. Define a new random variable Y = 8X - 3. Find the mean and standard deviation of Y.

a) E[Y] = 173; σY= 320

b) E[Y] = 176; σY= 37

c) E[Y] = 176; σY= 320

d) E[Y] = 173; σY= 40

e) E[Y] = 173; σY= 37

f) None of the above

Reference no: EM131099809

Questions Cloud

Improvement and management of quality process : What is the main purpose & main concept & conclusions of the article - What is the key question the author is addressing with this document.
Which principle of taxation stresses vertical equity : Which principle of taxation stresses vertical equity? Explain.
Complete a inventory worksheet for the titan off-campus shop : You will be completing a Summary Inventory worksheet for the Titan Off-Campus Shops based on focused product inventories of individual stores. You will also be highlighting inventory values that fall below acceptable amounts.
A basic home security system in assembly for an 8051 : A basic home security system in assembly for an 8051. needs to have keypad for code and 3 sensors with a panic button.
Find the mean and standard deviation : Suppose you have a distribution, X, with mean = 22 and standard deviation = 5. Define a new random variable Y = 8X - 3. Find the mean and standard deviation of Y.
Appropriate set of numbers : If the standard deviation of a set of scores =0, what can you say about the scores in the distribution? Verify your answer using an example . Create an appropriate set of numbers and actually calculate the SD(standard deviation ), showing that it..
Causing the democratic party to expect electoral gains : What does this mean? And which party did it benefit? What is happening now that is causing the Democratic Party to expect electoral gains in the next few years? Hint: demographics!
Design the database using the er approach : Design the database using the ER approach and then create the tables accordingly. Populate the tables
Discuss the service strategy processes : CIS3008 IT Service Management 2016 Major Assignment. Many organisations manage their IT services at an operational level without a clear strategic focus. HSC intends to continue their ITIL adoption with processes from the Service Strategy phase. Di..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Force of attraction between mars and the satellite

1) What is the force of attraction between Mars and the satellite? 2) What speed should the satellite have to be in a perfectly circular orbit? 3) How much time does it take the satellite to complete one revolution?

  Find covariance and correlation coefficient

The times that a cashier spends processing each person's transaction are independent and identically distributed random variables with a mean of 1.5 minutes and standard deviation of 1 minute.

  What is the appropriate alternative hypothesis

A major restaurant chain claims the mean waiting time for customers is no more than 9 minutes. A random sample of 35 customers was selected and the waiting time recorded.  What is the appropriate alternative hypothesis

  Determine that average closing costs lies in given range

She chooses 40 new home sales at random and determine that average closing costs are $6600. Standard deviation of population is $120. Test her belief at µ = 0.05.

  If you have a normal distribution of a random variable x

If you have a normal distribution of a random variable x, with a mean of 56 and standard deviation of 8: What is the probability that the random variable x will be within plus or minus 1 standard deviation of the mean?

  When n 20 and p 01 i can approximate the distribution of

when n 20 and p 0.1 i can approximate the distribution of the sample proportion with a normal distribution with mean 2

  Completing test at level of significance

Complete the test at the 5% level of significance.

  Find probability randomly chosen us adult invests in stocks

What is the probability that a randomly chosen U.S. adult invests in stocks, given that s/he invests in fixed income instruments? Round your answer to decimal places.

  What viewpoint of probability does the statement illustrate

The probability that the cause and the cure for all cancers will be discovered before the year 2020 is .20. What viewpoint of probability does this statement illustrate?

  Description of the variable

Provide a brief description of the variable and whether the scale of measurement is nominal, ordinal, interval, or ratio, and why. Explain what it means to say that this variable is "normally distributed."

  Probability of accepting the null hypothesis

If the true mean for Saturday sales is now $4500, what is the probability of accepting the (false) null hypothesis in (a) above (the probability of not sharing the manager's concern because of lack of evidence)?

  Computing all the descriptive statistics

To compute all the descriptive statistics for the following set of three test scores over the course of a semester. Which test had the highest average score? Which test had the smallest amount of variability?

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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