Sarah Doucette
AC150256
MA260 Statistical Analysis 1
Assignment 08
August 12, 2017
1.
1.)
For X=75 z=(75-90)/22=15/22
2)
For X= 100 z=(100-90) 22=10/22=5/11
Answer z=value are 15/22 and 5/11 the first sore is negative because 75<90 and the second one is
p
Sarah Doucette
AC1502565
MA260 Statistical Analysis 1
Assignment 05
August 12,2017
1.
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4
2.
A. 5/14
B. 9/14
3.
Let X = number of orders unfilled, X has a Poisson di
Question 1 of 40
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Suppose you pay $1.00 to roll a fair die with the understanding that you will get back $3.00 for
rolling a 5 or a 2, nothing otherwise. What is your expected value?
A. $1.00
B. $0.00
C. $3.00
D. $1.00
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Alan tossed a die 50 times and obtained the results shown in the dot plot below.
How many times did he roll an even number?
A. 17
B. 19
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The volumes of soda in quart soda bottles are normally distributed with a mean of 32.3 oz and a
standard deviation of 1.2 oz. What is the probabi
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The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities. Find
the median of the data.
A. 2.79 in.
B. 3.45 i
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Convert 5/16 to a percent.
A. 31.25%
B. 0.3125%
C. 3.125%
D. 0.03125%
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To avoid working late, a quality control an
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A die with 12 sides is rolled. What is the probability of rolling a number less than 11? Is this the
same as rolling a total less than 11 with two
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The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120
mm Hg and a standard deviation of 12 mm Hg. What perce
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Find the standard deviation for the given data. Round your answer to one more decimal place
than the original data.
15, 42, 53, 7, 9, 12, 14, 28,
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Find the original data from the stemandleaf plot.
A. 7.11, 7.18, 7.28, 7.28, 7.31, 7.38, 7.38
B. 0.81, 1.51, 1.52, 1.52, 0.83, 1.53, 1.53
C. 0.81, 0.81, 1.52, 1.52, 1.
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Convert 5.65 to a percent.
A. 565%
B. 5.65%
C. 0.565%
D. 56.5%
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One month before a recall election, a poll of 500
Joseph King
AC1504988
MA260 Statistical Analysis
Assignment 8
March 18, 2017
Mean Labor Cost for Television Repair
Z = 75 - 90 / 22 = -.68
Z = 100 - 90 / 22 = .45
Both of the repair costs are reasonable, and within the mean labor cost.
The cost of labor i
Joseph King
AC1504988
MA260 Statistical Analysis
Assignment 5
March 16, 2017
The Mean and Variance of Discrete Probability Distribution
x
p(x)
x*p(x)
2
0.5
1
8
0.3
2.4
10
0.2
2
p-E<p<p+E
5.4
12.04
u (mean)
Variance
xp = 2 * .5 = 1
xp = 8 * .3 = 2.4
xp = 1
Rachael Williams
MA 260 Statistical Analysis
Assignment 08
30th, May 2017
1. A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair
a color television is $90 with a standard deviation of $22. Montes TV Sales and Service
Capitalism, the dominant politico21st century is a system based on private ownership,
expropriating unpaid labour through the production and distribution of commodities, with the
goal for the maximisation of profit (Davies 2006:1). This maximisation of pr
John W. Holley Jr.
AC1111134
MA260C Assignment 8
3/19/2015
1. z=(x - mean)/sd=(75-90)/22=-0.682
and z=(100-90)/22=0.45
At x=75 z is -0.68 and at x=100 z is =0.455
The first z-score is negative (-0.682) that means that $75 is 0.682 standard deviations belo
John Holley Jr.
MA260 Statistical Analysis 1
Assignment 5
AC1111134
1. The mean =
The variance Var(x)=
2.
x i pi
=2*0.5+8*0.3+10*0.2=5.4
x i2 pi
= 2^2*0.5+8^2*0.3+10^2*0.2-5.4^2=12.04
a)[6C3]/[8C3]= 20/56 = 0.3571
b)P(at least one not tenured) = 1 - P(
ASSIGNMENT 08
MA260 Statistical Analysis I
Directions: Be sure to save an electronic copy of your answer before submitting it to
Ashworth College for grading. Unless otherwise stated, answer in complete sentences,
and be sure to use correct English, spell
ASSIGNMENT 05
MA260 Statistical Analysis I
Directions: Be sure to save an electronic copy of your answer before submitting it to
Ashworth College for grading. Unless otherwise stated, answer in complete sentences,
and be sure to use correct English, spell
BM350.S.3.1 Marketing Management
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A bag contains 4 red marbles, 3 blue marbles, and 7 green marbles. If a marble is randomly sel
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The amount of Jens monthly phone bill is normally distributed with a mean of $50 and a standar
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Find the mode(s) for the given sample data. 7.29, 7.41, 7.56, 7.29, 7.88, 7.99, 7.62
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A machine is supposed to ll juice bottles with 16 uid ounces of juice. The man
MA260.S.3.1 Statistical Analysis I
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A sample consists of every 49th student from a group of 496 students. Identify the type of
sam
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A two-tailed test is conducted at the 5% significance level. What is the P-value required to reject the null hypothesis?
A. Greater than or equal to 0.10
B. Less than or equal to 0.05
C. Les
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A 28-year-old man pays $125 for a one-year life insurance policy with coverage of $140,000. If the
probability that he will live through the year is 0.9994, to the nearest dollar, what is th
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The time series line chart below shows the prices of a volatile stock from January 1999 to December
1999. Between which two consecutive months did the price of the stock drop by the greates
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Humanities majors spend an average of $115 per course on books.
Mathematics majors spend an average of $70 per course on books. What is
the percent difference between the two amounts relati