User Account

All Pages

Children taken from the population

Assignment Help Basic Statistics
Reference no: EM131251580

It is estimated that 20 percent of all school children in America are lefthanded. Let us assume that this estimate is reasonably accurate. Consider a random sample of 12 school children taken from the population. 

(a) Compute the probability that fewer than 3 children in the sample will be lefthanded. 

P(X<3)=P(X≤2)=(Carry 4 decimal digits.) 

(b) Compute the probability that between 6 and 9 children (inclusive) will be lefthanded. 

P(6≤X≤9)=P(X≤9)-P(X≤5)=(Carry 4 decimal digits.) 

(c) Compute the probability that more than 5 children will be righthanded. 

P(X≤6)=(Carry 4 decimal digits.) 

Note: For (c) above, "more than 5 righthanded" means "less than or equal to 6 lefthanded."

Reference no: EM131251580

Questions Cloud

Particular species of a flower : For a particular species of a flower, 40 percent have smooth leaves and 60 percent have hairy leaves. Suppose that you randomly pick 15 flowers of this species.
Are there any indications of model inadequacy : Analyze the data from this experiment. Which factors significantly affect the customer response rate?
Define partitions on the set of integers : Indicate whether each of the following define partitions on the set of integers. Explain your answer.
Which must be greater than or equal to zero : First, player 1 selects a real number x, which must be greater than or equal to zero. Player 2 observes x.- Then, simultaneously and independently, player 1 selects a number y1 and player 2 selects a number y2, at which point the game ends.
Children taken from the population : It is estimated that 20 percent of all school children in America are lefthanded. Let us assume that this estimate is reasonably accurate. Consider a random sample of 12 school children taken from the population.
Write out the alias structure for this design : Calculate the range and standard deviation of the free height for each run. Is there any indication that any of these factors affects variability in the free height?
What is the monopolist markup over the competitive price : What is the profit-maximizing output of the monopolist shown below? What price do they set? What is the monopolist's markup over the competitive price? Why will this price not fall
Is transparency good for business why or why not : How important is transparency to your interactions with your leaders? Is transparency good for business? Why or why not? Can leaders trust most of their employees and customers to be basically good? Why or why not?
Determining automobile mileage ratings : In determining automobile mileage ratings, it was found that the mpg ( X ) for a certain model is normally distributed, with a mean of 30 mpg and a standard deviation of 1.5 mpg. Find the following:

Reviews

Write a Review

Basic Statistics Questions & Answers

  Forecast for the spending index

The forecast for the Spending Index in the first half of 1996 is 45.2. The company has committed $145,000 for capital improvements during this time.

  Find imported autos sold to over forty age group

The proportion p1 of all imported autos sold to 25-40 age group is greater than or equal to the proportion p2 of imported autos sold to over 40 age group?

  Reducing fat and saturated fat in your familys diet is

reducing fat and saturated fat in your familys diet is important to maintaining heart health and reducing calories.

  Forecasting food and beverage sales

Suppose that January sales for the fourth year turn out to be $295,000. What was your forecast error? If this is a large error, Karen might be puzzled about the difference between your forecast and actual sales value.

  Interpret the value of the vertical intercept for this

in an emergency the typical driver requires about 0.75 seconds to get his or her foot onto the brake. the distance that

  A person selected at random from this hwas data

Problem 1a. What is the probability that a person selected at random from this HWAS data set will be between 30 and 39 years of age inclusive?

  Which projects should the company choose to maximize?

Arizona Semiconductor is trying to determine which R&D projects to fund for the upcoming fiscal year. The company has a limit of $200,000 and 10 researchers available for R&D to be spread between several projects. The table below shows the resourc..

  Question regarding the maximum error of estimate

In the formula for the Confidence Interval for the Mean, besides E, what group of symbol(s) represents the Maximum Error of Estimate?

  Write this estimate by hand on your histogram and show on

1.simulate 100 random normal variables with mean 1.5 and standard deviation 2. create a histogram which shows the data

  Find how large sample is to decrease standard deviation

Determine standard deviation be if sample contained 100 students rather than 50? How large the sample is required to decrease standard deviation of percentage who say "Yes" from 7% to 3.5%?

  Confidence interval estimate of mean red blood cell count

A simple random sample of 50 adults Is obtained and each person's red blood cell count is measured (in microliters).The sample mean is 4.23.The population standard deviation for red blood cell counts is .40.Construct a 99% confidence interval esti..

  If 05 percent of the population actually has the disease

a laboratory blood test is 95 percent effective in detecting a certain disease when it is in fact present. however the

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