Question: In a recent study, it reported on October 29, 2012 that the mean age of tablet users is 34 years. Suppose the standard deviation is

In a recent study, it reported on October 29, 2012 that the mean age of tablet users is 34 years. Suppose the standard deviation is 15 years. Take a sample size n=100.

A. What are the mean and standard deviation for the sample mean ages of tablet users?

B. What does the distribution look like?

C. Find the probability that the sample mean age is more than 30 years (the reported mean age of tablet users in this particular study.)

D. Find the 95th percentile for the sample mean age (to one decimal place.)

Thank you for your help!

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

QUESTION 1 In a random sample of size11,N(mu,phi)population,obtain90%confidence interval for standard deviation (phi)if the sample variance s^2=28. a. 3.91

In a recent study reported Sept.21,1952 on the Flurry Blog, the mean age of tablet users is 34 years. Suppose thestandarddeviationis15 years. Take a sample of n = 100. Find the 90th percentile for...

in a recent study report oct 29.2012 on the flurry blog the mean age of tablet user is 35 years . suppose the standard deviation is ten years the sample size is 39. find the 41st percentile for the...

For the article provided below please write down a PRESS RELEASE (three-hundred and fifity words MAX) that entails the following parts: the press release tries to distill the essence of the article's...

1. In 2013, several data server companies took a dramatic decision to begin using energy surcharges to recapture rising energy costs. However, customers are critical of how the energy surcharges are...

One sample hypothesis testing homework 1. The Los Angeles County Metropolitan Transportation Authority has set a bus mechanical reliability goal of 3,900 bus miles. Bus mechanical reliability is...

Center for Learning and Technology COURSE SYLLABUS PRINCIPLES OF STATISTICS STA-201-GS Course Syllabus PRINCIPLES OF STATISTICS STA-201-GS Thomas Edison State College May 2015 Course Essentials...

Based on the information provided in the scenario and on an outside review of the relevant literature, students are to prepare a formal recommendation to the CEO on whether or not it makes sense to...

SOCI 3P11 Dr. Kevin Gosine, Instructor QUANTITATIVE DATA ANALYSIS I REVIEW FOR MID-TERM TEST February 2015 TEST DATE: Thursday, February 26th, 2015 (7pm, AS216) A make-up test will only be granted if...

please do fast:- According to the U.S. Bureau of Labor Statistics, 7.0%% of female hourly workers who are 16 to 24 years old are being paid minimum wage or less. (Note that some workers in some...

Write a program, in Java, to convert from binary to decimal andfrom from binary to hexadecimal. Please use instance variables,preferably strings. The program must do the conversion withoutusing any...

Creative Designs makes intricate jewelry out of precious metal. The company is introducing a new line and needs to select a manufacturing process. Three options are available. The first involves...

in Alberta real estate transaction the current annual property taxes for the property being purchased are $3,650, of which the seller has paid $1,000. The transaction is scheduled to close on March...

What does it mean when D X LC = (2 X RC X HC X D).

4. Develop circular models, with positive and negative feedback loops, for the following situations: (a) In a poor third-world country, the population increase has been very large in the last ten...

Annoyance about a statement that has been made by somebody

6. Develop a circular model, with positive and negative feedback loops, showing the relationships between the following critical variables: