Topic: statistics
Order Description
hi there 1 i include unit handbook 2 questioner and survey3 which are the question for the assignment 3 i included 4 lectures 4 i attached alsoone survey and its
solution that we were given in the lecture last but not the least, this assignment is part of my MBA course many thanks
this should be in a report format in either word document or pdf while u should include the u calculate in the appendix capture from excel

The formatting of the work should be 1.5 line spacing in a San Serif font such as Arial 11 font size.

The individual assignment will be a report demonstrating the ability of the student to evaluate and analyse a problem related to a data set by means of statistical
methods learned during the lectures.
The students will be introduced to a fictional company that has designed and run an employee survey to solve current challenges. The survey is linked to financial and
performance records of the company. Each student will be issued with a unique variation of a simulated dataset.
Students write a report addressed to the Board of Directors. The report should include a short description of the background of the problem, data preparation,
analysis, interpretation of the results with recommendations for actions. In addition, students should critically evaluate the quality of the questionnaire. The
analysis should include descriptive statistics, correlation and regression.
The report should follow a classic structure including an executive summary as well as a log about data preparation as appendix. The log should be user friendly with
appropriate illustration to enable a reproduction of the analysis with the same results.
the whole assignment should be within 2500 word while i left 250 for the appendix

i will send the assignment handbook where u can see the assignment brief and marking reburies , also i will send the questioner that we need to answer and the data of
the survey in a file called survey3, in addition, i will send you some unit lectures. kindly contact me if you need any further information.

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there 1 i include unit handbook 2 questioner and survey3 which are the question for the assignment 3 i included 4 lectures 4 i attached alsoone survey and its solution
that we were given in the lecture last but not the least, this assignment is part of my MBA course many thanks

hi Anne i would like the writer to know that the words in tabels are counted but not the graphs, also i would like the writer to explain the methods in the appendix as
it is mentioned in the unit handbook .lastly, could you prioritise the order please many thanks falih

statistics

1. (7 points) The following is known. 2% of women have breast cancer. 80% of
mammograms detect breast cancer when it is there (and therefore 20% miss it).
9.6% of mammograms detect breast cancer when its not there (and therefore
90.4% correctly return a negative result).

a) A woman was picked randomly was given a mammogram test. What is the
probability that she will be tested positive?

b) Suppose she was tested positive. What is the probability that she actually
has breast cancer?

2. (7 points) A shipment of 25 items contained 5 defectives. The buyer tested 7
randomly selected items from the lot.

a) What is the probability that she will find exact two defectives in the sample?
b) What is the probabilility that she will find at least one defective in the
sample?

3.183 Series and parallel systems. Consider the two systems
shown in the schematic on page 174. System A operates
properly only if all three components operate properly.
(The three components are said to operate in series.) The
probability of failure for system A components 1, 2, and 3 is
12, .09, and .11, respectively. Assume that the components
operate independently of each other.
174 CHAPTER 3 Probability
System A: Three Components in Series
Input ->.-‘.-.-’ Output
System B: Two Parallel Subsystems
o Subsystem C Q
Input -< -* Output
Subsystem D

System B comprises two subsystems said to operate in a. It is known that the proportions
parallel. Each subsystem has two components that operate produced by the seven supplie
in series. System B will operate properly as long as at least .006, .0002, .0002, and .001, resp
one of the subsystems functions properly. The probability microchip failure is observed,
of failure for each component in the system is .1. Assume likely responsible?
that the components operate independently of each other. b. Suppose the seven suppliers pr
a. Find the probability that System A operates chips at the same rate, 9005, If

P1“ OPCT lY- failure is observed, which suppli-
b. What is the probability that at least one of the compo- sible?

t’ St Awillf’l dth f thtth t

3 fsalilllq ys em a1 an ere ore a e sys em *3.186 Dream experiment in psycholog
c. Find the probability that System B operates properly. ‘3 glst ls grvg: tapes if 120 $113)]?th
(1. Find the probability that exactly one subsystem in reams. . .e . psyc 0 ong ls 0

System B fails anx1ety 1nd1v1duals and 10 are 10
e. Find the probability that System B fails to operate Elijfcsgmdogm S task 1s to sele

properly.
f. How many parallel subsystems like the two shown here 3’ Count the number of sample

would be required to guarantee that the system would ment.

operate properly at least 99% of the time? b- Assuming that the PSYChOIOEISt

statistics

1. (7 points) The following is known. 2% of women have breast cancer. 80% of
mammograms detect breast cancer when it is there (and therefore 20% miss it).
9.6% of mammograms detect breast cancer when its not there (and therefore
90.4% correctly return a negative result).

a) A woman was picked randomly was given a mammogram test. What is the
probability that she will be tested positive?

b) Suppose she was tested positive. What is the probability that she actually
has breast cancer?

2. (7 points) A shipment of 25 items contained 5 defectives. The buyer tested 7
randomly selected items from the lot.

a) What is the probability that she will find exact two defectives in the sample?
b) What is the probabilility that she will find at least one defective in the
sample?

3.183 Series and parallel systems. Consider the two systems
shown in the schematic on page 174. System A operates
properly only if all three components operate properly.
(The three components are said to operate in series.) The
probability of failure for system A components 1, 2, and 3 is
12, .09, and .11, respectively. Assume that the components
operate independently of each other.
174 CHAPTER 3 Probability
System A: Three Components in Series
Input ->.-‘.-.-’ Output
System B: Two Parallel Subsystems
o Subsystem C Q
Input -< -* Output
Subsystem D

System B comprises two subsystems said to operate in a. It is known that the proportions
parallel. Each subsystem has two components that operate produced by the seven supplie
in series. System B will operate properly as long as at least .006, .0002, .0002, and .001, resp
one of the subsystems functions properly. The probability microchip failure is observed,
of failure for each component in the system is .1. Assume likely responsible?
that the components operate independently of each other. b. Suppose the seven suppliers pr
a. Find the probability that System A operates chips at the same rate, 9005, If

P1“ OPCT lY- failure is observed, which suppli-
b. What is the probability that at least one of the compo- sible?

t’ St Awillf’l dth f thtth t

3 fsalilllq ys em a1 an ere ore a e sys em *3.186 Dream experiment in psycholog
c. Find the probability that System B operates properly. ‘3 glst ls grvg: tapes if 120 $113)]?th
(1. Find the probability that exactly one subsystem in reams. . .e . psyc 0 ong ls 0

System B fails anx1ety 1nd1v1duals and 10 are 10
e. Find the probability that System B fails to operate Elijfcsgmdogm S task 1s to sele

properly.
f. How many parallel subsystems like the two shown here 3’ Count the number of sample

would be required to guarantee that the system would ment.

operate properly at least 99% of the time? b- Assuming that the PSYChOIOEISt