User Account

All Pages

What would be the mean of sampling distribution

Assignment Help Basic Statistics
Reference no: EM133266109

An investment website can tell you what devices are used to access the site. The site managers wonder whether they should enhance the facilities for trading via smartphones, so they want to estimate the proportion of users who would access the site that way (even if they also use their computers sometimes). They draw a random sample of 200 investors from their customers. Suppose that the true proportion of smartphone users is 36%

a) What would you expect the shape of the sampling distribution for the sample proportion to be?

b) What would be the mean of this sampling distribution?

c) What would be the standard deviation of the sampling distribution

Reference no: EM133266109

Questions Cloud

Population of the same job : A nurse is paid $68,500 in a state where the average nurse earns $63,000 with a standard deviation of $9400. A youth program coordinator in this same state earn
Determine the market peaked in 2007 or 2008 : Going back to the home sales data for Delta County, CO (see your Project 1 work) you want to see when the market peaked and where it seemed to return to its pre
Chi-square test of independence : In contingency tables, we use the chi-square test of independence. Knowing what you should regarding the null and alternative hypotheses of this significance te
What would you have concluded : A clinical trial compares the new drug described in Question 3 to aspirin. The group using the new drug had somewhat fewer heart attacks than those in the aspir
What would be the mean of sampling distribution : An investment website can tell you what devices are used to access the site. The site managers wonder whether they should enhance the facilities for trading via
What is the total number of patients in dataset : Please answer some questions about a frequency table. Below is a table that lists the yearly number of visits to a hospital by a patient in the left-hand column
Compute the percent for grade : A class had 4 As, 6 Bs, 11 Cs, 3 Ds, and 1 F. Compute the percent for each grade. ????A class had 12 As, 20 Bs, 31 Cs, 10 Ds, and 7 Fs. Compute the percent for
What is the probability that given a customer just arrived : Arrivals to a very popular Mexican Food restaurant follow a Poisson process with an average rate of 2.5 customers per minute. What is the probability that in th
Give an example of a simple event for survey : The employees of a large company were surveyed on questions regarding their educational background and gender. Out of a total of 200 women employees, 120 had co

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the molar mass of dry air

1. Dry air is 78% N2, 21% O2 and 1% Ar. (a) What is the molar mass of dry air? (b) What is the molar mass on a humid day when the water vapor content is 3%?

  What are the current issues facing the air industry

What are the current issues facing the air industry? Discuss how each impacts the industry, its customers and employees.

  True percent of workers in city have full health insurance

A random sample of 900 workers in a particular city found 342 workers who had full health insurance coverage. Find a 95% confidence interval for the true percent of workers in this city who have full health insurance coverage.

  Run the regression and summarize the results

Run the regression and summarize the results. Write the statistical model for this analysis. Include all assumptions

  Find a test statistic for the proportion

In a recent taste test, 1017 out of 1250 people could not tell the difference between a popular soda's original flavor and the new calorie-free flavor.

  State of rhode island disintegrated

In February 2002, a piece of ice sheet biger than the state of Rhode island disintegrated in 30 days. This ice sheet

  How much error expect between sample mean-population mean

How much error, on average, would you expect between the sample mean (M) and the population mean for: a sample of n=4 scores, a sample of n=16 scores, and a sample of n=25 scores.

  Group statistics and independent samples test

Two sections (boxes) appear in the output: Group Statistics and Independent Samples Test. The first section, Group Statistics

  Find probability selected boy in secondary can run mile

A standard deviation of 60 seconds. Find the probability that a randomly selected boy in secondary school can run the mile in less than 322 seconds.

  Confidence interval to estimate the population mean

Calculate a 95% confidence interval to estimate the population mean.

  Formula for calculating a population z score

Is there a difference in formula for calculating a population z score and a sample z score?

  Would a confidence interval be wider or narrower

Cheating. A Rutgers University study released in 2002 found that many high school students cheat on tests.

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