Mathematics, 18.03.2021 01:00 juliannabartra

7% of married couples in the US are mixed . Population is in the US a. An SRS of n = 100 couples will be selected from this population and p, the proportion of couples that are mixed, will be computed. What are the mean and standard deviation of the sampling distribution of p?
b. Is it reasonable to assume that the sampling distribution of p is approximately normal for random samples of size n = l00? Explain.
c. Suppose that the sample size is n = 200 rather than n= 100, as in Part (b). Does the change in sample size change the mean and standard deviation of the sampling distribution of p? If so, what are the new values for the mean
and standard deviation? If not, explain why not.
d. Is it reasonable to assume that the sampling distribution of p is approximately normal for random samples of size n = 200? Explain.
e. When n = 200, what is the probability that the proportion of couples in the sample who are mixed will be greater than .10?

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:00

How can you decide witch operations to use to slice a two step equation

Answers: 2

Answer

Mathematics, 21.06.2019 17:30

Asphere has a diameter of 10 in. what is the volume of the sphere?

Answers: 1

Answer

Mathematics, 21.06.2019 22:30

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6

Answers: 1

Answer

Mathematics, 21.06.2019 22:30

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|

Answers: 1

Answer

You know the right answer?

7% of married couples in the US are mixed . Population is in the US a. An SRS of n = 100 couples wi...

Questions

Social Studies, 27.11.2019 23:31

One important theme in the 2016 u. s. presidential election was a backlash against trade agreements in general; a significant number of voters were c...

Business, 27.11.2019 23:31

The central bank of a country facing economic and financial market difficulties asks for your advice. the bank cut its policy interest rate to the eff...

Mathematics, 27.11.2019 23:31

Edwin catches trout at times of a poisson process with rate 3 per hour. suppose that the trout weigh an average of 4 pounds with a standard deviation...

Business, 27.11.2019 23:31

Tara and her parents want to save at least $40,000 for college in 8 years. which statement describes the most effective savings plan for tara and her...

Business, 27.11.2019 23:31

Suppose there are no taxes. firm abc has no debt, and firm xyz has debt of $5000 on which it pays interest of 10% each year. both companies have ident...

Mathematics, 27.11.2019 23:31

Suzette ran and biked for a total of 50 mi in 4 h. her average running speed was 5 mph and her average biking speed was 15 mph. let x = t...

Physics, 27.11.2019 23:31

The msds for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact with. it reacts with b...

English, 27.11.2019 23:31

The "roots of old verse" is the lead article in the atlantic literary journal...

Chemistry, 27.11.2019 23:31

Draw a lewis structure for no2- and answer the following questions based on your drawing. 1. for the central nitrogen atom: the number of lone pairs...

Business, 27.11.2019 23:31

As part of its stock-based compensation package, international electronics granted 24 million stock appreciation rights (sars) to top officers on janu...

Mathematics, 27.11.2019 23:31

The bobcats had a win-loss record of 41-23 before their star player, melissa, got injured. melissa didn’t play in any more games, and the bobcats fini...

Mathematics, 27.11.2019 23:31

If other factors are held constant, what happens to a confidence interval if the sample variance increases? the range of t scores increases and the w...

Mathematics, 27.11.2019 23:31

Suppose x and y have the following joint probability mass function. p ( 1 , 1 ) = . 10 , p ( 1 , 2 ) = . 12 , p ( 1 , 3 ) = . 16 p ( 2 , 1 ) = . 08 ,...

Business, 27.11.2019 23:31

You want to create a $72,000 portfolio comprised of two stocks plus a risk-free security. stock a has an expected return of 13.6 percent and stock b h...

Business, 27.11.2019 23:31

Pina colada corp. issued 2,100 8%, 9-year, $1,000 bonds dated january 1, 2017, at face value. interest is paid each january 1. (a) prepare the...

Computers and Technology, 27.11.2019 23:31

The university has hired you to write an algorithm to schedule their final exams. each quarter, the university offers n different classes. there are r...

Business, 27.11.2019 23:31

Jetblue’s chief marketing officer, marty st. george, was asked by the wall street journal, "what is the biggest marketing challenge jetblue faces? " h...

Chemistry, 27.11.2019 23:31

In albuquerque, new mexico, the typical atmospheric pressure is 625 torr. what is the boiling point of water (δhvap = 40.7 kj/mol) in albuquerque? (a...

Business, 27.11.2019 23:31

On december 31, 20xx, abc company needed to record its accrued wages for year-end. if december 31 is a thursday, then abc company must account for fou...

Business, 27.11.2019 23:31

During its most recent fiscal year, raphael enterprises sold 380,000 electric screwdrivers at a price of $20.40 each. fixed costs amounted to $1,444,0...

More questions: Mathematics Another questions