Phones for guidance on purchasing decisions

Assignment Help Basic Statistics
Reference no: EM132372769

What should I buy? A study conducted by the Pew Research Center reported that 58% of cell phone owners used their phones inside a store for guidance on purchasing decisions. A sample of 15 cell phone owners is studied.

Show worked formula

a. What is the probability that six or more of them used their phones for guidance on purchasing decisions?

b. What is the probability that fewer than 10 of them used their phones for guidance on purchasing decisions?

c. What is the probability that exactly eight of them used their phones for guidance on purchasing decisions?

d. Would it be unusual if more than 12 of them had used their phones for guidance on purchasing decisions?

Reference no: EM132372769

Questions Cloud

What is the probability that a visit to a pcp : What is the probability that a visit to a PCP's office results in lab work or referral to a specialist?
Compute the first quartile : The data below describe the fat? content, in grams per? serving, for a sample of 20 chicken sandwiches from? fast-food chains.
Calculate and identify the critical path of project network : The goal of this discussion is to explore ways of thinking about how a project management tool like the project network can be used.
Compute the sample covariance : a. Compute the sample covariance. (Round to three decimal places as? needed.)
Phones for guidance on purchasing decisions : a. What is the probability that six or more of them used their phones for guidance on purchasing decisions?
What is the variance of the new data : To adjust for this mistake, you need to add 10 lb to each subject's weight. What is the variance of the new data shifted by 10 lb?
What is the variance of these 10 values : Suppose the standard deviation of 10 values is 9. What is the variance of these 10 values?
What proportion of new cars : The selling price of a new car is normally distributed with an average of $21210 and a standard deviation of $3040.
Heights of women in the us have been : The heights of women in the U.S. have been found to be approximately normally distributed with a mean of 63.4 inches and the SD to be 3.75 inches.

Reviews

Write a Review

Basic Statistics Questions & Answers

  What percent of women have a total cholesterol level

(a) What percent of women have a total cholesterol level less than 217?

  Examples of sampling method

To determine monthly rental prices of apartment units in San Francisco Bay area, samples were constructed in the following ways. Identify the technique used to produce each sample. (cluster, convenience, random, stratified, systematic):

  Properties of data distributions

Consider the many possible distributions of grades on a quiz in a statistics class; imagine that the grades could range from 0 to 100.

  Seven books a b c d e f and g are to be arranged on a shelf

seven books a b c d e f and g are to be arranged on a shelf. how many ways can they be ordered so that exactly two

  Compute the value of the t test statistic

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd = 0. Compute the value of the t test statistic. Round intermediate calculations to four decimal places as needed and fina..

  Te seasonal factor for the second quarter is 145

question team sports inc. sells sporting goods to high schools and colleges via a nationally distributed catalogue.

  Would you reject the null hypothesis

What is the value of z? Round to two decimal places. Would you reject the null hypothesis? What is the point estimate of µ? Round to two decimal places.

  In 2008 the per capita consumption in country a was

what is the probability that someone in country a consumed more than 12 pounds of coffee in 20008?in 2008 the per

  Proportion of observed variation in hardness

What proportion of observed variation in hardness can be explained by the simple linear regression model relationship between hardness and elapsed time? (Give the answer to three decimal places.)

  Use your plan and summarize what you have learned

Describe a plan for using the applet to explore the behavior of the median of an even number of observations.- Use your plan and summarize what you have learned.

  What is the probability that the order executed

What is the probability that the order executed through this 5 subprocesses in series is defect free?

  What is the probability that tina stevens paid cash

Ms. Tina Stevens just purchased a new dress that cost $120. What is the probability that Tina Stevens paid cash?

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