Question

In: Economics

Consider three scenes: a. Amy read a report on how many apples the average person eats...

Consider three scenes:

a. Amy read a report on how many apples the average person eats per month. Therefore, she wants to test to see whether or not UCI students eat more than an average amount. The report states that the mean is 11.5 apples per month, but it doesn’t state the standard deviation. It also states that most people either eat about 20-25 apples per month, or else they eat 0-5 apples per month. Almost no one eats 5-20 apples per month. She takes a sample of four UCI students and calculates their average number of apples eaten per month.

b. Mickey wants to test if students in his class did better than average on the SAT. SAT scores have a known mean of 500 and standard deviation of 100. They are normally distributed. He has a sample of six students.

c. Zoe is testing to see if people who watch many movies per year know more film history than the average person. She asks them one question. She asks if they know who starred in the film “Citizen Kane”. Typically, four out of ten people know the answer, so she wants to know if more than four out of ten movie-goers will know the answer. She has a sample of 100 people.

What test should each of them use to analyze her data?

d. Donna is testing to see if going to the beach to study for a test affects test score. Her data consists of 200 people who went to the beach and 250 people who didn’t go to the beach.

1. a one-sample t-test for means

2. an independent sample t-test

3. a one-sample z test for means

4. a repeated (related) measure t-test

5. a one sample z-test for proportions

6. none of the above

Solutions

Expert Solution


Related Solutions

How many times have you blinked in your lifetime? You may assume that the average person...
How many times have you blinked in your lifetime? You may assume that the average person blinks 20 times per minute. b) How old would you be if you blinked a total of ten million times? Again, you may assume that the average person blinks 20 times per
Consider an economy that produces only three types of fruit: apples, oranges & bananas. In the...
Consider an economy that produces only three types of fruit: apples, oranges & bananas. In the base year the production & price data are as follows: Fruit      Quantity    Price Apples 3000 Unit Rs. 2 per unit Bananas 6000 Unit Rs. 3 per unit Oranges 8000 Unit Rs. 4 per unit In the current year the production & price data are as follows: Fruit     Quantity    Price Apples 4000 Unit Rs. 3 per unit Bananas 14,000      Unit...
Ruth read a report that the national weekly spending average for teens in the age group...
Ruth read a report that the national weekly spending average for teens in the age group 12-15 years is $42. She took a random sample of 60 teens and found that they spent an average of $35 per week with a standard deviation of $ 7.50. Test the claim that teens from this area spend less than the national average. Use a 5% significance level.
please summarize Tony Alessandra's "how to read a person like a book"
please summarize Tony Alessandra's "how to read a person like a book"
How many ways are there to distribute 30 identical apples among 4 kids so that each...
How many ways are there to distribute 30 identical apples among 4 kids so that each kid gets at least 1 apple but no kid gets more than 20 apples.
Consider an economy, but don't know the marginal propensity to consume (MPC) for the average person....
Consider an economy, but don't know the marginal propensity to consume (MPC) for the average person. If the government decides to increase its government spending by 1 billion dollars in education (building more public schools, etc.) To nance the increase in government spending, the government decides to increase tax by 1 billion dollars as well. How would the GDP respond to this series of change in the Goods Market Equilibrium? Explain.
You read an article saying that the average person believes you should wait two years before...
You read an article saying that the average person believes you should wait two years before marrying a significant other. You want to test the theory that the average college student believes it should be longer than 2 years. Assume that σ = 16 months. (a.) From the data collected in class, we found that from 77 people who answered the question, the average number of months people gave was 26.6234. Test your hypothesis at the 5% significance level. (b.)...
1.People were polled on how many books they read the previous year. How many subjects are...
1.People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book with 95​% ​confidence? Initial survey results indicate that sigmaequals19.4 books. A 95 % confidence level requires nothing subjects. 2.Find the critical values chi squared Subscript Upper L and chi squared Subscript Upper R for the given confidence level c and sample size n. cequals0.95​, nequals24 3.Use technology to construct the...
You have read the amicus report on Arnes Orbison. Consider the different ways psychology and the law...
You have read the amicus report on Arnes Orbison. Consider the different ways psychology and the law work together and what roles forensic psychologists play in the legal system. How does this amicus brief reflect the balance between psychology and law? How does this report reflect the ways forensic psychologists work within the legal system while remaining separate from it?
Read this Paragraph and Answer the three question thanks The nation's final employment report before Tuesday's...
Read this Paragraph and Answer the three question thanks The nation's final employment report before Tuesday's presidential election showed the economy has gained momentum recently but is still growing far below its potential, helping both candidates frame their closing arguments to voters. The Labor Department said Friday that employers added a seasonally adjusted 171,000 jobs in October. Figures for previous months were revised higher, showing the economy has added an average 173,000 jobs a month since July--more than double the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT