# simple assignment

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account_balance_wallet \$15

### Question Description

Note1: Print off a copy of this Microsoft Word file and answer each question directly on your hard paper copy of these pages.

Note 3: This assignment does NOT cover all the material that you are responsible for knowing in this course. You are, of course, responsible for the material covered in all readings, lectures, assignments, and practice problems

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mickeygabz
School: UC Berkeley

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MGSC2207 Winter 2019

MGSC2207

ASSIGNMENT #4

due 11:00 am 8 Feb 2019

nd

(Assignment drop boxes Loyola 2 floor)
Section _________________________________________
Name (print) ____________________________________
Signature _______________________________________
Student ID# _____________________________________
Note1: Print off a copy of this Microsoft Word file and answer each question directly on your hard
paper copy of these pages.
Note 3: This assignment does NOT cover all the material that you are responsible for knowing in this
course. You are, of course, responsible for the material covered in all readings, lectures,
assignments, and practice problems (on the P: drive).

Total marks for this assignment = 38

1. A sample survey of 54 discount brokers showed that the mean price charged for a trade of
100 shares at \$50 per share was \$33.77 and a standard deviation of \$15.
a) Develop a 95% confidence interval for the mean price charged by discount brokers for
a trade of 100 shares at \$50 per share.
6 marks
Confidence interval = sample mean ± z critical * σ/√𝑛
Z critical at 95% confidence level = 1.96
Confidence interval = 33.77 ± 1.96 * 15/√54
=33.77 ± 4
= (29.77, 37.77)

b) Explain what the interval you found tells...

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Anonymous
awesome work thanks

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