Value of the population mean

Assignment Help Basic Statistics
Reference no: EM132488186

A market researcher collects a simple random sample of customers from a population of over a million? customers that use a home improvement website. After analyzing the? sample, she states that she has? 95% confidence that the mean? time customers spent on? that website per day is between 18 and 53 minutes. Suppose that the population mean? time customers spent on that website is 21 minutes a day. Does this value of the population mean help to show that the confidence interval estimate is? correct?

Reference no: EM132488186

Questions Cloud

Presentation on urban sustainability : The Class Presentation is a Multi-step assignment that will culminate by sharing online presentations based on new information and research.
How to determine the selling price on a sale-type lease : How to determine the selling price on a sale-type lease with unguaranteed of $20,000, 5 year lease. annual payment 100,000. Interest 14%, Cost 313,000.
Calculate the value of the stock one year from today : Calculate the value of the stock one year from today. Calculate the PV of the dividends paid during the supernormal growth period.
Determine the 15th percentile for incubation times : The main incubation time a fertilized eggs is 22 days suppose the incubation times are approximately normally distributed with a standard deviation of one day
Value of the population mean : Does this value of the population mean help to show that the confidence interval estimate is? correct?
How many additional appointments does the new physician : Using the appropriate information, how many additional appointments does the new physician need to have to make up the $30,000 loss?
What is the probability that if she pulls two marbles : What is the probability that if she pulls two marbles, with replacement, they are red and then blue?
Compute which of the statement is true : Compute Which of the statement is true. Publicly traded US companies must provide an annual report to their shareholders when operating conditions change
Identify the claim and write the claim : In a recent survey of 150 Americans, researchers concluded that those surveyed watch television on average 4 hours per day with a standard deviation of 2 hours

Reviews

Write a Review

Basic Statistics Questions & Answers

  Explain the linkage that a jit inventory system

Explain the linkage that a JIT inventory system provides between the purchasing and production functions. What are the implications for quality?

  What is the probability that two vans will be selected

An automobile manufacturing plant produced 29 vehicles today: 9 were sedans, 11 were vans, and 9 were trucks. Plant managers are going to choose two of these vehicles for thorough inspection. The first vehicle will be chosen at random, and then ..

  Population mean expenditure

Determine the percentage of samples of size 16 that will have mean monthly expenditures on food within $ 18 of the population mean expenditure of? $370.

  Analyze data and explain which would be better medication

A cold and flu study is looking at how two different medications work on sore throats and fever. Analyze the data and explain which one would be the better medication for both a sore throat and a fever

  Cost of international air transportation

How are air cargo rates calculated? Calculate the cost of international air transportation for the following shipment: 200 cartons of fine jewelry weighing a total of 2,500 pounds. The carton dimensions are 18 in by 12 in by 12 in (L × W × H). The..

  Anova problem for comparing three treatment means

Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level.

  The manager of a youth-oriented clothing store at the local

the manager of a youth-oriented clothing store at the local mall has determined that 27 of the males who enter the

  What is a null hypothesis vs alternate hypothesis

What is a null Hypothesis vs. Alternate Hypothesis, One Tailed Test vs Two Tailed Test - how do we know when to use what?

  Theoretical probability and experimental probability

Comparing the experimental and theoretical probabilities, can you say the die used in this experiment is a fair die? Why or why not?

  Find the probability that among 120 patients

If 23 percent of all patients with high blood pressure have bad side effects from a certain kind of medicine, find the probability that among 120 patients

  Calculate the probability distribution for the family size

Calculate the probability distribution for the family size lived in by individual people. Describe the shape of this distribution.

  What is the standard deviation of the mean

The variance of the population of individuals is 400 and there are 25 individuals in each sample. What is the standard deviation of the mean?

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