Answered: Part 1 a. What is the probability that…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Part 1

a. 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

58%

and

64%?

enter your response here

(Type an integer or decimal rounded to four decimal places as needed.)

Part 2

b. The probability is

60%

that the sample percentage will be contained within what symmetrical limits of the population percentage?

The probability is

60%

that the sample percentage will be contained above

enter your response here

and below

enter your response here

(Type integers or decimals rounded to one decimal place as needed.)

Part 3

c. The probability is

91%

that the sample percentage will be contained within what symmetrical limits of the population percentage?

The probability is

91%

that the sample percentage will be contained above

enter your response here

and below

enter your response here

(Type integers or decimals rounded to one decimal place as needed.)

Part 4

d. Suppose you selected a sample of 400 institute members. How does this change your answers in (a) through

(c)?

An increase in sample size decreases the standard error, causing the value of the answer to part (a) to decrease and the ranges in parts (b) and (c) to narrow.

An increase in sample size increases the standard error, causing the value of the answer to part (a) to increase and the ranges in parts (b) and (c) to widen.

An increase in sample size decreases the standard error, causing the value of the answer to part (a) to increase and the ranges in parts (b) and (c) to narrow.

An increase in sample size increases the standard error, causing the value of the answer to part (a) to decrease and the ranges in parts (b) and (c) to widen.

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