User Account

All Pages

Find shape of the distribution for the sample mean

Assignment Help Basic Statistics
Reference no: EM132852668

A random variable is normally distributed. It has a mean of 245 and a standard deviation of 21.

a.) If you take a sample of size 10, can you say what the shape of the distribution for the sample mean is? Why?

b.) For a sample of size 10, state the mean of the sample mean and the standard deviation of the sample mean.

c.) For a sample of size 10, find the probability that the sample mean is more than 241.

d.) If you take a sample of size 35, can you say what the shape of the distribution of the sample mean is? Why?

e.) For a sample of size 35, state the mean of the sample mean and the standard deviation of the sample mean.

f.) For a sample of size 35, find the probability that the sample mean is more than 241.

g.) Compare your answers in part c and f. Why is one smaller than the other?

Reference no: EM132852668

Questions Cloud

Psychology is contemporary science : Psychology is a contemporary science. What can we expect to learn in the future? What are the possible problems we may face with psychology in the future?
Determine the amount of Acme sales for the current year : Acme's gross profit ratio increased by 20% over the prior year. Determine the amount of Acme's sales for the current year
Prepare the appropriate journal entry : Problem - Purchase Discounts - For each of the following transactions of Buckeye Corporation, prepare the appropriate journal entry
Possible problems in research design : How can you use the scientific method to find and address possible problems in your research design?
Find shape of the distribution for the sample mean : A random variable is normally distributed. It has a mean of 245 and a standard deviation of 21.
Tabulate the data and plot measurement : Provide an example for starting a new business providing height measurements of humans. Your customers expect accurate and precise measurements.
Calculate the value of Long inventory on December : Calculate the value of Long's inventory on December 31 assuming it uses a perpetual inventory system and the LIFO method
Forensic biology is scientific method of examining : Forensic biology is a scientific method of examining, testing, and probing evidence from a crime scene investigation.
Shape of the sampling distribution for samples : City officials want to estimate support for building a new city park. A random sample of 15 city residents will be selected. Suppose that 12 residents

Reviews

Write a Review

Basic Statistics Questions & Answers

  A test for breast cancer correctly classifies 95 of

a test for breast cancer correctly classifies 95 of malignant tumours as malignant but also incorrectly classifies 1 of

  Limit for the population proportion of voters

A random sample of 100 voters found that 44% were goint to vote for a certain candidate. Find the 99% limit for the population proportion of voters who will vote for that candidate.

  Probability distribution of an appropriate random variable

Check in each case whether the given function can serve as the probability distribution of an appropriate random variable.

  Estimate chances to earn

We toss an unfair coin 100 times in a row. We play according to following rules: If tail: +$1 If head: -$1.45 P (head=0.4) Estimate chances to earn at least $3 at the end of this experiment.

  Relationship between feelings about weight and sex

In the relationship between feelings about weight and sex, which variable is the explanatory variable and which is the response variable?

  A roulette wheel has slots numbered 1 to 36 and two labeled

a roulette wheel has slots numbered 1 to 36 and two labeled with 0 and 00. suppose that all 38 outcomes have equal

  The study on attracting cereal leaf beetles

Green versus yellow. Using the Minitab output in Figure 29.4, verify the values for the sample contrast  2 and its standard error given in Example 29.7. Give a 95% confidence interval for the population contrast L2.

  Regression model and lagged values model

Laura wanted to build a multiple regression model based on advertising expenditures and coffee times price index. Based on the selection of all normal values she obtained the following:

  What is the reorder point equal

In order not to run out of stock before the receipt of a new order, at what inventory level should the firm place an order? That is, what is the reorder point?

  In a study of drug testing of olympic athletes at the

in a study of drug testing of olympic athletes at the university of texas in 2004 an athlete was either and illegal

  Is there significant evidence that the labeling on the

nutritional information on a packaged food product shows that the product contains 100 calories. a random sample of

  The time to failure density function pdf for a system is ft

the time to failure density function pdf for a system is ft 0.01 0ltt lt100 daysfind a rtb the hazard rate functionc

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