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The average number of accidents observed each day is 0.4. If daily accidents are independent and follow the Poisson distribution, the probability that there are at least 3 accidents in a week is?

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Need help with Multiple Choice Question 1-15 Business Statistics (write on answer)

Need help with Multiple Choice Question 1-15 Business Statistics (write on answer)

Question 1 The collection of all elements of interest in a particular study is
the populationthe samplingstatistical inferenceData and Statistics Question 2 A portion of the population selected to represent the population is called
statistical inferenceData and Statisticsa censusa sample Question 3 The process of analyzing sample data in order to draw conclusions about the characteristics of a population is called
Data and Statisticsstatistical inferencedata analysisdata summarization Question 4 Categorical data
indicate either how much or how manyannot be numericare labels used to identify attributes of elementsmust be nonnumeric Question 5 Quantitative data
are always nonnumericmay be either numeric or nonnumericare always numericNone of these alternatives is correct. Question 6 In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of a
categorical variablequantitative variablecategorical or quantitative variable, depending on how the respondents answered the questionNone of these alternatives is correct. Question 7 The average age in a sample of 190 students at City College is 22. As a result of this sample, it can be concluded that the average age of all the students at City College
must be more than 22, since the population is always larger than the samplemust be less than 22, since the sample is only a part of the populationcould not be 22could be larger, smaller, or equal to 22 Question 8 A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 24 years. This is an example of
a censusData and Statisticsan experimentstatistical inference Question 9 A graphical presentation of the relationship between two variables is
an ogivea histogrameither an ogive or a histogram, depending on the type of dataa scatter diagram Question 10 Thecan be used to show the rank order and shape of a data set simultaneously.
Ogivepie chartstem-and-leaf displaybar chart Question 11 Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?
histogrambox plotdot plotcrosstabulation Question 12 Categorical data can be graphically represented by using a(n)
histogramfrequency polygonogivebar chart Question 13 A tabular summary of a set of data showing the fraction of the total number of items in several classes is a
frequency distributionrelative frequency distributionfrequencycumulative frequency distribution Question 14 Fifteen percent of the students in a school of Business Administration are majoring in Economics, 20% in Finance, 35% in Management, and 30% in Accounting. The graphical device(s) which can be used to present these data is (are)
a line chartonly a bar chartonly a pie chartboth a bar chart and a pie chart Question 15 A line that provides an approximation of the relationship between two variables is known as the
relationship lineTrend lineline of 2 variablesapproximation of two variables Save and Submit Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Need statistics help with "Using ROI Excel" Presentation of Data Business Statistics

Need statistics help with "Using ROI Excel" Presentation of Data Business Statistics

Project Week 1For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadheet. Download it here.In this data set – the ROI data set - for 2 different majors (Business and Engineering), you are given a sample of the 20 best colleges according to ROI (ROI = Return on Investment) and their ‘School Type’, ‘Cost’, ’30-Year ROI’, and ‘Annual % ROI’. For each of the 2 majors create a pie chart using the column ‘School Type’. Comment on your results.For each of the 2 majors create a frequency distribution and histogram using the column ‘Annual % ROI’. Group with starting at 6% (0.06), ending at 11% (0.11), and go by 0.5% (0.005). For the histograms title your charts “Histogram Business Major: Annual % ROI” for Business majors and “Histogram Engineering Major: Annual % ROI” for Engineering Majors. Comment on your results.

Need help with a Stats Question about the population of a study

Need help with a Stats Question about the population of a study

Using 300 employees as the population for this study, we can
find the annual salary and the training program status for each individual by
referring to the firm’s personnel records. The data set containing this
information for all 300 employees in the population is in the data file named
PERSONNEL.
NOTE: You need to use EXCEL to do the following. Please do
not copy and paste for I want to see the functions you used.
1 (a) Draw a histogram for the annual salary of all the
300 employees (assumed to be a population).
(b) Find the average,
variance and the standard deviation for
the annual salary of all the 300 hundred
employees
2 (a) Draw a histogram for those who completed the
training program out of the 300 people.
(b) Find the
proportion, variance and the standard deviation for those who completed the
training
program
out of the 300 people.
3. Select 20 random samples, out of the annual salary of 300
employees, where each sample has ten
observations
using the SAMPLING function in EXCEL (We discussed this in class).
4. Using the samples in step 3, below each sample, compute
the sample average, sample variance and
sample standard
deviation, using annual salary. Next line, compute the average of the sample
averages, variances and the standard deviations.
5. Repeat step 3 for those who completed the training
program. (HINT: To take random samples from
those who completed the training, please
use If Statement to change ‘Yes’ to 1 and ‘No’ to 0. Thus the
samples consist of 1s and 0s.)
6. Using the samples in step 5, below each sample, compute
the sample proportion, sample variance
and the sample
standard deviation. Compute the average of the sample proportions, the
sample variances
and the sample standard deviations.
7. Draw a histogram of the 20 sample averages. Compare
this graph with the result of step 1 (a).
8. Draw also a graph of the 20 sample proportions.
Compare this graph with the result of step 2 (a).
9. Compare the
results of step 1 (b) with step 4.
10. Compare the
results of step 2 (b) with step 6.
2015_fa_case_ii_1_.docpersonnel.xls

NEED statistics help with THIS PROJECT about a data set and should be DONE BY 11:59pm TONIGHT!!

NEED statistics help with THIS PROJECT about a data set and should be DONE BY 11:59pm TONIGHT!!

Select one of the following options to complete the assignment:Write a 500- to 700-word memo presentation that could be used to persuade an audience to a particular course of action around your chosen issue, problem, or opportunity, based on results of your hypothesis test.Create a 10- to 12-slide Microsoft® PowerPoint® presentation that could be used to persuade an audience to a particular course of action around your chosen issue, problem, or opportunity, based on results of your hypothesis test. Deliver an oral presentation for Local Campus students or write detailed speaker notes for Online Campus students.Select a data set that could benefit from hypothesis testing. Examples of these published data sets can be pulled from the text, online sources, or StatDisk.Formulate a hypothesis statement and perform a hypothesis testing procedure on the data identified above; you may refer to Figure 8.1 or 8.2 in the text, omitting the graph in Step 6.Describe the results of the tests.Interpret the results of your hypothesis test, stateany limitations of the analysis, and describe the both the statistical and practical significance of the results. Attach the data set and the results of thehypothesis testoutput created.I need a good communicator so that I can email you an xcell doc with data. sddataset.xls

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