Proportion and probability

Assignment Help Basic Statistics

Reference no: EM13103876

According to hypothetical information, 18% of all Americans have hazel colored eyes. A SRS of 25,000 Americans are surveyed and asked about their eye color (assume each of the Americans in the sample has an 18% chance of having hazel colored eyes).

a) Determine the mean and standard deviation of this sample of Americans that have hazel colored eyes.
Mean =__________

Standard Deviation=__________

b) What is the approximate probability that at least 4600 of the 25,000 Americans surveyed have hazel colored eyes? ______________

c) What is the approximate probability that between 4450 and 4570 inclusive of the 25,000 Americans surveyed have hazel colored eyes? _______________

Reference no: EM13103876

Questions Cloud

Hypothesis tests which make up a two factor anova : The structure of a two factor study can be presented as a matrix with levels of one factor determining the rows and the levels of the second factor determining the columns. With this structure in mind, describe the mean differences that are evalua..

Scholastic aptitude test : The scores of students taking the Scholastic Aptitude Test (SAT) are normally distributed with a mean u = 1035 and a standard deviation o = 131.

North american racial ideologies and effects on societies : For the time period from 1500-1830, distinguish North American racial ideologies and their effects on society with Latin American/Caribbean racial ideologies and their effects on society.

What are magnitude and direction of net electrostatic force : A charge of -3.2 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.099 m. The charges on the circle are -3.95 µC at the position due north and +5.45 µC at the position du..

Proportion and probability : According to hypothetical information, 18% of all Americans have hazel colored eyes. A SRS of 25,000 Americans are surveyed and asked about their eye color

Find electric field at surface of each conductor is same : Two conductors are joined by a long copper wire. Thus A) each conductor must be at the same potential. B) no free charge can be present on either conductor. C) each conductor carries the same free charge.

Random number sets : Choose a number at random from the set of numbers from the set of numbers {1,2,3,4,5}. Now choose a number from the subset {1,...,X). Call this second number Y.

Creating lp model to deliver optimal ultra dry martini mix : MI6's Q Branch is developing a new ultra dry martini. The martini is a mixture of vodka plus three liquid ingredients: A, B, and C.

What percentage of the alpha particles penetrated completely : A physicist has developed a device that generates a beam of alpha particles (each of which is a helium nucleus, consisting of two protons, two neutrons, and no electrons).

User Account

All Pages