(Answered) Question economics and finance online investing has grown

Statistics

Question: Economics and Finance Online investing has grown with the Internet and with companies like E*TRADE and Ameritrade. Independent random samples of investors were obtained and asked whether they traded online within the past year. The data are given in the following table, by portfolio size.

a. Compute the sample proportions and verify the nonskewness criterion.

b. Construct a 95% confidence interval for the difference in population proportions of online investors.

c. Using the interval in part (b), is there any evidence to suggest that the population proportion of online investors is different for these two portfolio classifications? Justify your answer.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92562049
Price:- $15

Verified Expert

Priced at $30 Now at $15, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Using a telephone survey of 400 randomly selected

Using a telephone survey of 400 randomly selected registered voters, he solicits both their party identification and whether or not they had read the newspaper that day. The results are displayed in the following cross-t ...

In a pre-election poll a candidate for district attorney

In a pre-election poll, a candidate for district attorney receives 379 of 750 votes. Assuming that the people polled represent a random sample of the voting population, test the claim that a majority of voters support th ...

Micron technology inc invested into 7 new projects all of

Micron Technology Inc. invested into 7 new projects (all of equal size). For each of these project, there is a 75% probability that the project will have a 12% return and a 25% that it will have a -9% return. Each of the ...

In a hypothesis test we use a sample to gain insight on

In a hypothesis test, we use a sample to gain insight on what is likely the outcome for the population. In your example, that is a probability of 1 out of 20 as there were 20 people in the class. A hypothesis test might ...

Help me solve the following1 when there is a significant

Help me solve the following 1) When there is a significant difference in the population, but the research fails to find one ...this is what kind of error? 2) Assume that when victims are asked how well their needs were m ...

The december cbot treasury bond futures contract is quoted

The December CBOT Treasury bond futures contract is quoted at 92-19. If annual interest rates go up by 1.50 percentage points, what is the gain or loss on the futures contract? (Assume a $1,000 par value, and round to th ...

Question 1 a sample of 81 account balances of a credit

Question 1: A sample of 81 account balances of a credit company showed an average balance of $1,200 with a standard deviation of $126. 1. Formulate the hypotheses that can be used to determine whether the mean of all acc ...

Consider the following random sample ofnbspdata8 6 -6 0 -9

Consider the following random sample of data: 8, 6, -6, 0, -9, 4, -1, 7, 6, 84 a) What is the standard deviation of the sample data? Round your response to at least 3 decimal places. b) If the outlier is removed, what is ...

Suppose a retailer claims that the average wait time for a

Suppose a retailer claims that the average wait time for a customer on its support line is 179 seconds. A random sample of 57 customers had an average wait time of 169 seconds. Assume the population standard deviation fo ...

A standard 52-card deck of cards is shuffled and then a

A standard? 52-card deck of cards is shuffled and then a hand of 8 cards is dealt from the deck. How many different outcomes are possible that have exactly 3 ?pairs, and all other cards of different? ranks?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert