1
ECON 3300 HW#1 (SOLUTION)
Chapter 2: Homework
24. (p.75)
Kelson Sporting Equipment, Inc. makes two different types of baseball gloves: a
regular model and a catchers model. The firm has 900 hours of production time available in its
cutting and sewing de

A population consists of the following ve val ues'. D, D, 3, 4, E.
a. List all samples of size 3, and compute the mean of each sample. [Hound sample means to 2
decimal places
Sample 1I.~alues Sum Mean
1 ELIELB 39 m9
2 [LEA 16 L330
3 ELIELE 9 9
4 0,3,4 1 1

3 In a tandem sample 0f 23 families, the average weekly feed expense was $95.63 with a standard
deviatirm of $22.5. Determine wheier a IlDI'IILBl disdibutin 01' a tdistrihum shrmld he used
at wheier neither ui these eanhe used tel eernstruet a eondenee lt

a:
public static BitSequence stuffEEitSequence hitFramej
cfw_
ff this versicn dees nething, only returns the input
If student adds cede here te dd stuffing
return hitFrame;
ff end stuffcfw_
It:
* Remcves zerd after any sequence cf 5 enes in hitFrame
* Put

Problem 13.6 (3) Suppose a decision maker has the utility function shown in Table 13.1. An investment
opportunity has EMV $ 1236 and expected utility 0.93. Find the certainty equivalent for this investment and
the risk premium.

1. Requirements for Data Modeling Problems
1. You should identify insertion, update, and deletion anomalies in
the sample rows of the big patient table shown in Table 1. You
should identify one example of each type of anomaly. The
combination of VisitNo a

FILE FORMATS THAT DONT LOSE QUALITY
They are called Lossless Formats.Those that lose quality are Lossy Formats
We call RAW a lossless format because it preserves all of the files original data, while we call
JPEG a lossy format because some data is lost w

main()
cfw_
Input x = ("Enter the values for X ")
Inputy = ("Enter the values for Y ")
if (x > 0 & y > 0)
print("point (0, 0) lies in the First quandrant\n",x,y);
a+;
elif (x < 0 & y > 0)
print("point (0, 0) lies in the Second quandrant\n",x,y);
b+;
elif

(1,3) -=: (no?) cfw_i-eizer a -=: e or a=e andb -=: d
a) Let (ago) = (3,11) and (and) = (3,0)
here a=3=e, but 11=b #- U=d so it not lexieographiea order
b Let (air) = [4,?) and (do?) = (2,1?)
here 31:4 >- 2=e so it not lexieographiea order
ejLet (air) = [

(a) Approximately what percent of heights in this sample would exceed 79"?
ANS : Three standard deviations above the mean. So, 0.3%
(b) What is the approximate percentile of a senior who is 73" tall?
ANS: One Standard deviation above the mean. So, 84%
(

ANS-1) How
to find the domain
In general, we determine the domainof each function by looking for those values of the independent
variable (usually x) which we are allowed to use. (Usually we have to avoid 0 on the bottom of a fraction,
or negative values

Let us first attempt to simplify the difference quotient for the sine function. Let x and h
be real numbers. The very first expression that we encounter in the difference quotient is
the quantity sin(x+h). This expression can be rewritten using the angle

c)
From the normal probability table, P( z < 0.67) = 0.75
z = (x - ) / s
0.67 = (x-78)/9
x=(9)(0.67) + 78 = 84.03 so , 75th percentile is about 84
d)
IQR = 75th percentile - 25th percentile
From the normal probability table, P( z < 0.67) = 0.75
z

A media access control address (MAC address) of a computer is a unique identifier assigned to network interfaces for
communications at the data link layer of a network segment.
MAC addresses are used as a network address for most IEEE 802 network techno

Lines that are parallel to the x axis have slope = 0. The slope of a tangent line to the graph of y = x^3 - 3x is given by the first derivative y '.
y ' = 3x^2 - 3
We now find all values of x for which y ' = 0.
3x^2 - 3 = 0
Solve the above equation fo

Question Two
Confidence Interval
Six measurements were made of the concentration (in percent) of ash in a certain variety of
spinach. The sample mean was 19.35 and the sample standard deviation was 0.577.
a
Find a 95% confidence interval for the concentra

ANSWER: Yes, it's possible. Taken from this post, the updated mean and standard
deviation (SD) can be calculated as follows:
Xn=1n(Xn+(n1)Xn1)Xn=1n(Xn+(n1)Xn1)
Where nn is the sample size (including the new observation), XnXn the value of the new
observat

ADVANTAGES OF NETWORK MODEL-
The major advantage of network model are-
1.) Conceptual simplicity-Just like the hierarchical model,the network model is also conceptually simple and easy to design.
2.) Capability to handle more relationship types-The networ

According to a recent National Association of Colleges andEmployers
(NACE) report, 48% of college student internshipsare unpaid. A recent
survey of 60 college interns at a local university foundthat 30 had unpaid
internships.
a. Use the five-step p-value

Statistics are useful in certain careers and in sports, according to Wichita State University. When people use statistics in real-life situations, it is called applied statistics. Statistics involves descriptive and inferential analysis of raw data.
Busin

a) Given that, x =7250 , s = 1000, n =64 .
Null hypothesis: Ho: = 7500
Alternate hypothesis: Ha: ? 7500
Significance level, a = 0.05
Test statistic z = (x - )/(s/vn) = -2
Critical values = 1.96
Decision rule: Reject Ho if z < -1.96 or z >1.96
Since z > 1.