User Account

All Pages

Sampling distribution of the proportions

Assignment Help Basic Statistics
Reference no: EM131501143

A market researcher for the users of Apple products wants to know the proportion of people who own an Apple iPad. A survey of 600 people indicated that 86% own an iPad.

a) Find the standard deviation of the sampling distribution of the proportions?

b) How large would be the standard deviation have been if the number of people surveyed was 150 customers (assume the proportion is about the same)?

For part b, why can't I put 150 into the equation of standard deviation instead of reduce the denominator by 4?

Reference no: EM131501143

Questions Cloud

Significant amount of annual disposable income : Based on casual observation, my sense is that out biggest shopper segment is established adults above 40 with a significant amount of annual disposable income.
Federal governments take to keep drug prices down : What can state and federal governments take to keep drug prices down? Why are state governments interested in keeping prescription prices lower?
What is the value of the ordinary shares : What is the value of the ordinary shares if you require a 12% return?
What is your expected return : If you require an 8% return, given the current price, should you sell or buy more preference shares? What is your expected return?
Sampling distribution of the proportions : Find the standard deviation of the sampling distribution of the proportions?
What is the opportunity cost of not taking the cash discount : What is the opportunity cost of not taking the cash discount?
Compute the test statistic : The table records the number of strikes out of 50 that each player threw. Use a significance level of 0.05
Compare your two companies using the financial statements : Compare and contrast your two companies using the financial statements for the two firms and the accumulated data and analysis completed so far.
Identify two different types of financial institutions : Identify two different types of financial institutions and how they were formed.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Question regarding testing hypothesis

A new process for producing synthetic diamonds can be operated at a profitable level only if the average weight of the diamonds produced by the process is greater than 0.5 karat.

  Random sampling and random assignment

Develop a hypothesis, label the independent and dependent variables, discuss what the experimental and control groups are doing in this study, and decide who (and how many) participants are needed. Be sure to discuss random sampling and random ass..

  The mean of the sampling distribution of means is equal to

the mean of the sampling distribution of means is equal to the mean of the population. t-f and why or why

  Renovativing in the historic district where there is a lot

jan finished culinary school and wants to start her own pastry business. she has a few options and believes that a

  What is the null hypothesis what is the research hypothesis

a researcher wants to know if there was a difference between urban and rural jurisdictions in the hiring of female

  Interval for the difference between n matched pairs

For the events A and B, if (A∩B)' =S (where S, of course, is the sample space), then the events CANNOT be mutually exclusive.??b. In a confidence interval for the difference between n matched pairs of observations, the t-distribution to use is with 2..

  Why should you be hesitant to trust confidence interval

Based on these data, a computer program found that a 95% confidence interval for the mean annual compensation of all Forbes 500 CEOs is (1.69, 14.20) $ million. Why should you be hesitant to trust this confidence interval?

  In a certain region the mean annual salary for plumbers is

question 1in a certain region the mean annual salary for plumbers is 51000. letnbspxnbspbe a random variable that

  Find the probabilities that the first part is defect free

Find the probabilities that the first part is defect free.- the second part is defect free.- both parts are defect free.- one of the parts is acceptable.

  Fit a simple linear regression model

1. (45 points) Use the "Female Bears Data." Data from n = 19 female bears of varying ages are used to develop an equation for estimating Y = female bear's weight from X = female bear's neck circumference.

  Identify what would constitute a type i error

If a transit employee provides a strand of hair for drug testing, state the null and alternative hypotheses in verbal terms, then identify what would constitute a Type I error and a Type II error in this situation.

  Confidence interval for the average hourly wage earned

Using a random sample of 100 workers, researchers calculate a 95% confidence interval for the average hourly wage earned by construction workers in the city of Boston. This interval they calculate is from $18 to $26.

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