Question

Asked Oct 14, 2019

The Chartered Financial Analyst (CFA) institute reported that 51% of its U. S. members indicate that lack of ethical culture within financial firms has contributed the most to the lack of trust in the financial industry.

(Source: Data extracted from Global Market Sentiment Survey 2013,cfa.is/YqVCKB.)

Suppose that you select a sample of 100 CFA members.

- What is the probability that the sample percentage indicating that lack of ethical culture within financial firms has contributed the most to the lack of trust in the financial industry will be between 50% and 55%?
- The probability is 90% that the sample percentage will be contained within what symmetrical limits of the population percentage?
- The probability is 95% that the sample percentage will be contained within what symmetrical limits of the population percentage?
- Suppose you selected a sample of 400 CFA members. How does this change your answers in (a) through (c)?

Step 1

**Note:**

Hey there! Thank you for the question. As your question contains more than 3 parts, according to our policy, we have solved the first 3 parts for you. If you need help with any other part, please re-post the question and mention the part.

Step 2

**Introduction:**

The 100 (1 – *α*) % confidence interval for the population proportion, *π* is: (*p *– (*zα*/2) *√*(*π* (1 – *π*)/*n*), *p *+ (*zα*/2) *√*(*π* (1 – *π*)/*n*)).

Here, *n* is the sample size, *p* is the sample proportion, and *zα*/21 is th...

Tagged in

Q: Joe keeps his savings in a bank account. He began with $500, and adds $150 each year. In the form ...

A: Click to see the answer

Q: Edward has to take a six-question multiple-choice quiz in his sociology class. Each question has f...

A: Some characteristics of binomial distribution:Each trial has exactly two possible outcomes.There are...

Q: An experiment consists of casting a pair of fair six sided dice (one green and one red) and observin...

A: Hey, since multiple sub parts are posted, we will answer first three subparts according to our polic...

Q: I asked this question (If X(n,p) is a binomial random variable with parameters n and p, then why is ...

A: Here X(n,p) and X(n+1p) are not increasing functions. A binomial function X(n,p) increases when (n+...

Q: A single, fair 6-sided die is tossed. Find the odds in favor of rolling a 2, 3, or 6

A: It is given that the die is faired and has 6 sides. Therefore all the 6 faces are equally likely to ...

Q: Let z be a random variable with a standard normal distribution. Find the indicated probability. (Rou...

A: According to the given question, z be a random variable with a standard normal distribution.Therefor...

Q: question (b) make it very detailed

A: As per the questionGiven p.d.f of fx(x) is

Q: Perform the indicated operations and express your answer in decimal notation. 8.4×10^−5 over 4×10^−2

A: The value 8.4×10^-5 over 4×10^-2 is calculated by dividing 8.4×10^-5 by 4×10^-2.

Q: You have a built a deep learning workstation. This PC is made of expensive components. The component...

A: As per the question,The computer fails if any of the components i.e power supply, motherboard cpu or...