Find mean and standard deviation of proportions

Assignment Help Basic Statistics
Reference no: EM13137528

Harley Davidson motorcycles makes up 14% of all motorcycles registered in the US. You plan to interview an SRS of 400 motorcycle owners. What are the mean and standard deviation of the proportions of random samples of 400 motorcylce owners who own Harleys?

Reference no: EM13137528

Questions Cloud

French system of anti-terrorism : Using outside sources available on the internet or in the online library, research the terrorism policies of Israel, France, and the UK.
Hazen-williams formula -find the diameter of a pipe : Hazen-Williams Formula- Find the Diameter of a Pipe, The length of cast-iron pipe is to be 4200 ft., and the head causing flow is to be 12.6ft. After the pipe has been in service 5 years, it is expected to discharge water at a rate equal to 3.2 cf..
What is equity method balance of wilkinsons investment : Dividends of $70,000 were paid in each of these two years. What is equity method balance of Wilkinsons Investment in Bremm, Inc., at December 31, 2011?
Should english be official language of the united states? : Research Topic: Should English be made the official language of the United States?
Find mean and standard deviation of proportions : What are the mean and standard deviation of the proportions of random samples of 400 motorcylce owners who own Harleys?
What is amount of factory overhead controllable variance : The standard factory overhead rate is $10 per direct labor hour ($8 for variable factory overhead and $2 for fixed factory overhead) based on 100% capacity of 30,000 direct labor hours.
Compute annual depreciation : Conlin Company acquires a delivery truck at a cost of $42,000.The truck is expected to have a salvage value of $6,000 at the end of its 4-year useful life. Compute annual depreciation for the first and second years using the straight-line method.
Analysis of juvenile delinquency-public policy : This is an analystical study of adolescent psychology or what used to be known as "juvenile delinquency from the perspective of public policy, and what the implications of this study has in terms of the community at large.
Perspective of utilitarianism : You are required to select ONE company / organisations of your choice and discuss the background, history, product and services of the company in detail. Student is required to get an approval from the lecturer on the organization chosen to avoid sim..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Anova for location for magazines

Emma's On-the-Go, a large convenience store, has to decide where in the store to put its magazine rack. The manager at Emma's experiments with a selection of different locations, choosing a sample of days at each location.

  Bonferroni adjustment to determine the alpha level

If a researcher decides to use multiple comparisons in a study with three conditions, what is the probability of a Type I error across these comparisons? Use the Bonferroni adjustment to determine the suggested alpha level.

  Linear regression relationship analysis

Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0.

  Contingency table and probability

What is the probability that the cereal would be high calorie? In other words, what is P (high calorie)?

  Find probability of observing a sample proportion

Suppose the true population proportion is 68%. What is the probability of observing a sample proportion 64% or smaller.

  Estimating the true proportion of students

To estimate the true proportion of students who abstain from alcohol at LBCC, you will need to take a simple random sample.

  Expected payoff table and expected monetary value

Using Sally's estimate of demand that follows, how many T-shirts should she produce for the upcoming event?

  Question about data analysis

Demonstrate correct use of descriptive statistics. Demonstrate proficiency in hypothesis testing. Evaluate the results of a statistical analysis.

  Determine whether null hypothes be rejected or not

She chose the sample of 25 women who were recently married for first time and found average age was 23.5 years. Standard deviation was 3 years. Must null hypothesis be rejected?

  Information about t-statistic

Nationwide, the average waiting time until electric utility customer service representative answers a call is 300 seconds per call. The Gigantic Kilowatt Energy Company took a sample of 35 calls and found that, on the average

  Find the probability that model will be defective

Replace (or exchange) 10% of its model I and 18% of its model II. If a model is selected at random, find the probability that it will be defective.

  Construct confidence interval for proportion of all quebec

Construct and interpret a 99% confidence interval for the proportion of all quebec adults who would allow doctor assisted suicide.

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