QNT 275
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1
To make tests of hypotheses about more than two population means, we use the:
t distribution
normal distribution
chisquare distribution
analysis of variance distribution
2
You randomly select two households and observe whether or not they own a..

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QNT 275 Week 1 Apply Connect Week 1 Exercise
Review the glossary in your textbook in preparation for this assignment.
Complete the Week 1 Exercise in Connect.
Note: You have only 1 attempt available to complete assignments.
1.
Define Ratio Variable.
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What is the importance of statistics in business decision making? Describe a business situation where statistics was used in making a decision.
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Select four variables, other than what your fellow students have already selected, that could be measured by nominal, ordinal, interval, and ratio scale. Classify them by measurement scale and select descriptive statistics that can be used to summarize data. Use the following table when posting y..

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How do we define measurement? What are various levels of measurement? How do you select measurement levels when developing a survey or data collection tool? Explain with examples.
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This Tutorial contains 2 Papers
Develop a 875word response that addresses each of the following prompts:
Define statistics with citation and reference.
Contrast quantitative data and qualitative data. Use two Peer Reviewed references.
Evaluate tables and c..

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The following table lists the number of deaths by cause as reported by the Centers for Disease Control and Prevention on February 6, 2015:
Cause of Death Number of Deaths
Heart disease 611,105
Cancer 584,881
Accidents 130,557
Stroke ..

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QNT 275 Week 1 Practice: Connect Knowledge Check
Complete the Week 1 Knowledge Check in Connect.
Note: You have unlimited attempts available to complete practice assignments.
1.
Daily temperature in a local community collected over a 30day time period is an exampl..

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QNT 275 Week 2 Apply: Connect Week 2 Case
Part 1
You manage the inventory for a car dealership. Your management would like you to review current inventory on the dealership lot.
Review the Week 2 Data Set.
Create and calculate the following in Exce..

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You are employed as a statistician for a company that makes household products, which are sold by parttime salespersons who work during their spare time. The company has four salespersons employed in a small town. Let us denote these salespersons by A, B, C, and D.
The sales recor..

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Describe a business situation, other than what has already been selected by fellow students or selected from the team assignment, where mean and standard deviation can be used in decision making. Describe how calculation of mean and standard deviation can help in making a decision.
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What are the various methods one can use to identify the shape of data distribution collected for research study? Why it is important to know the shape of distribution? How it can be used in decision making? Provide examples other than those already posted in class.
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Select an article from a news magazine or research journal where data is displayed in a pie or bar chart. Describe the data displayed in the chart and what conclusion you could draw.
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1.
In a hearing test, subjects estimate the loudness (in decibels) of a sound, and the results are: 69, 67, 71, 72, 65, 75, 68, 68, 83, 73, 68.
Calculate the measures of central tendency (Mean, median, mode) and the measures of dispersion (range, standard deviation, variance).
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Review the following business scenario:
You are the manager in a small town in the lake district of a Midwestern state enjoys a robust tourist season during the summer months, but has only a small population of residents during the off season. The Littletown Café adjusts the levels of st..

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I2 (Week 2) Individual Assignment: Business Problem: Prepare a paper examining a business problem confronting your organization or an organization you know of that you feel could be addressed through the application of the business research process. Describe the problem. Then present the res..

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Purpose of Assignment
This assignment provided students with practice in understanding the relationship of averages and standard deviation to make an informed business decision about the gross income performance of each movie genre. Students will learn to implement the use of these stat..

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List the simple events for each of the following statistical experiments in a sample space.
One roll of a die.
Note: Separate your response with a comma (,). For example 22, 23, 24
Three tosses of a coin.
Note: Use this notation for your answer. heads = H. tails = T. Fo..

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QNT 275 Week 2 Practice: Analysis ToolPak Installation
Complete the steps indicated in the “Installing the Analysis ToolPak” video to prepare for this week’s assignment.
Take a screenshot of the Data tab showing the installed toolpak.
Click on the Assignment Files tab t..

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QNT 275 Week 2 Practice: Connect Knowledge Check
Complete the Week 2 Knowledge Check in Connect.
Note: You have unlimited attempts available to complete practice assignments.
1.
In a statistics class, 10 scores were randomly selected with the following results: 74, 73, 77, 77..

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QNT 275 Week 2 Quiz
1. In order to summarize qualitative data, a useful tool is a __________.
2. A stemandleaf diagram is constructed by separating each value of a data ..

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QNT 275 Week 3 Apply: Connect Week 3 Case
Part 1
Three hundred consumers between 21 and 49 years old were randomly selected. After sampling a new wine cooler, each was asked to rate the appeal of the phrase: “Not sweet like wine coolers, not filling like beer, and mo..

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This Tutorial contains 2 Papers
CLO Business DecisionMaking Project Part 1
Identify a business problem or opportunity at a company where you work or with which you're familiar. This will be a business problem that you use for the individual ass..

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An oil change shop advertised to change oil within 15 minutes. Based on the data collected on a typical day, what is the probability that oil change will take 15 minutes or less time? Based on the data, do you think the business claim is valid? Explain why or why not.
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What are some conditions under which business decisions are made using subjective probability concepts? Provide at least two examples of subjective probability.
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What are the characteristics of standard normal distribution? The HR department of an organization collects data on employees' age, salary, level of education, gender, and ethnicity. Which data do you think is more likely to follow normal distribution? Explain why.
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1.
A survey is made in a neighborhood of 90 voters. 75 are Democrats and 15 are Republicans. Of the Democrats, 30 are women, while 7 of the Republicans are women. If one subject from the group is randomly selected, find the probability the individual is a male Republican.
2.
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Individual Assignment: Descriptive Statistics:
Identify a research problem different from the previous research problems that uses two different sets of the same type of data. Example: Sales from two different months or years. GPA's of men and women. Number of two different shelf items sold (..

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Let x be a continuous random variable. What is the probability that x assumes a single value, such as a (use numerical value)?
The following are the three main characteristics of a normal distribution.
The total area under a normal curve equals _____.
A normal cu..

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QNT 275 Week 3 Practice: Connect Knowledge Check
1.
A plant manager knows that the number of boxes of supplies received weekly is normally distributed with a mean of 200 and a standard deviation of 20. What percentage of the time will fewer than 160 boxes of supplies arrive in a week?
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