User Account

All Pages

Define sampling distribution of possible sample means

Assignment Help Basic Statistics
Reference no: EM131728399

Question: Vehicle speeds at a certain highway location are believed to have approximately a normal distribution with mean μ = 60 mph and standard deviation σ = 6 mph. The speeds for a randomly selected sample of n = 36 vehicles will be recorded.

a. Give numerical values for the mean and standard deviation of the sampling distribution of possible sample means for randomly selected samples of n = 36 from the population of vehicle speeds.

b. Use the Empirical Rule to find values that fill in the blanks in the following sentence: For a random sample of n = 36 vehicles, there is about a 95% chance that the mean vehicle speed in the sample will be between _ _ _ _ _ _ and _ _ _ _ _ _ mph.

c. Sample speeds for a random sample of 36 vehicles are measured at this location, and the sample mean is 66 mph. Given the answer to part (b), explain whether this result is consistent with the belief that the mean speed at this location is μ = 60 mph.

Reference no: EM131728399

Questions Cloud

Demolishing abandoned warehouse and clearing lot : The cost of the demolishing the abandoned warehouse and clearing the lot.
What each of women might think about womens current roles : What opinions each of the women might have on the role the women should play in society? What each of the women might think about women's current roles.
Calculate the standard error of the sample mean : The cholest dataset on the companion website includes cholesterol levels measured for 28 heart attack patients 2 days after their attacks.
Higher after-tax return to company abc : Company ABC pays corporate tax at the 35% rate. Company ABC can buy a bond in firm XYZ yielding 12 % annual interest or a preferred stock.
Define sampling distribution of possible sample means : Give numerical values for the mean and standard deviation of the sampling distribution of possible sample means for randomly selected samples of n = 36.
Why you believe the first builds customer value : Choose three companies. Post your thoughts on why you believe the first builds customer value through value excellence.
Share of abc corporation stock : What would you pay for a share of ABC Corporation stock today if the next dividend (to be paid in one year) will be $6 per share
Describe a time when you were influenced by media : Describe a time when you were influenced by media bias in relation to a world event, or perhaps an event on a more local level.
Hires workers to harvest the grapes : King Estate makes an award winning Pinot Noir and hires workers to harvest the grapes. The diagram below shows the value of the marginal product.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Create a probability model for given carnival game

Create a probability model for this carnival game.- Find the expected number of darts you'll throw.- Find your expected winnings.

  Fit both logistic and probit models modelling proportion

the following data show the number of fruit fly killed at varying concentrations of nicotine.the number of ies killed

  Determine the confidence interval for the population mean

In a random sample of 12 adults from the U.S., the mean waste recycled per person per day was 1.4 pounds with a sample standard deviation of .3 pounds. Assume that the distribution of x = waste recycled per person per day is normal.

  Confidence intervals for the average price people

Todd is less interested in testing a hypothesis than he is in developing an estimate for what people would be willing to pay. He would like 95% confidence intervals for the average price people would be willing to pay

  Please explain how to work backward on a normal

Given a mean score of 70, standard deviation of 15,percentile of 23.Find the Z score,T score and raw score.

  Iq is normally distributed with a mean of 100 and a

iq is normally distributed with a mean of 100 and a standard deviation of 15. suppose one individual is randomly

  Type of pattern exists in the data

a. Construct a time series plot. What type of pattern exists in the data? b. Use exponential smoothing with α = 0.4 to develop a forecast of demand for week 13. What is the resulting MSE?

  Suppose that the lengths are normally distributed a quality

suppose that the lengths are normally distributed. a quality specialist collects a random sample of 16 rods and finds

  Confidence interval for average annual savings

According to the Wall Street Journal, an average of 44 tons of carbon dioxide will be saved per year if new, more efficient lamps are used.

  In a recent survey of 200 art students 163 of them

in a recent survey of 200 art students 163 of them indicated that they would rather be poked in the eye with a sharp

  Construct a discrete probabilty distribution for the random

the following data represents in thousands the total private and public enrollment levels in grades 9 to 12 in the

  1 develop numerical summaries of the data2 use regression

1. develop numerical summaries of the data2. use regression analysis to develop an estimated regression equation that

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