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MATH 533 Entire Course

MATH 533 Final Exam Set 1

MATH 533 Week 1 Homework

MATH 533 Week 1 Quiz

MATH 533 Week 2 DQ 1 Case Let's Make a Deal

MATH 533 Week 2 Homework (2 Sets)

MATH 533 Week 2 Quiz

MATH 533 Week 3 DQ 1 Ethics in Statistics Readings and Discussion

MATH 533 Week 3 Homework

(TCO D) PuttingPeople2Work has a growing business placing out-of-work MBAs. They claim they can place a client in a job in their field in less than 36 weeks. You are given the following data from a sample.

Sample size: 100

Population standard deviation: 5

Sample mean: 34.2

MATH 533 Final Exam Set 2

MATH 533 Week 1 Homework

1. (TCO A) Seventeen salespeople reported the following number of sales calls completed last month.

72 93 82 81 82 97 102 107 119

86 88 91 83 93 73 100 102 a. Compute the mean, median, mode, and standard deviation, Q1, Q3, Min, and Max for the above sample data

1. Complete the table to the right.

2. In one university, language incorporated a 10-week extensive reading program to improve students’ Japanese reading comprehension. The professors collected 267 books originally written for Japanese children and required their students to read at least 40 of them as part of the grade in the course.

MATH 533 Week 1 Quiz

MATH 533 Week 2 DQ 1 Case Let's Make a Deal

1. Graph the relative frequency histogram for the 300 measurements summarized in the relative frequency table to the right.

2. Would you expect the data sets that follow to possess relative frequency distributions that are symmetric, skewed to the right, or skewed to the left? Explain. Complete parts a through c below.

A number of years ago, there was a popular television game show called Let's Make a Deal. The host, Monty Hall, would randomly select contestants from the audience and, as the title suggests, he would make deals for prizes. Contestants would be given relatively modest prizes and then would be offered the opportunity to risk that prize to win better ones.

MATH 533 Week 2 Homework

MATH 533 Week 2 Quiz

1. The table to the right gives a breakdown of 2,149 civil cases that were appealed. The outcome of the appeal, as well as the type of trial (judge or jury), was determined for each case. Suppose one of the cases is selected at random and the outcome of the appeal and type of trial are observed.

A number of years ago, there was a popular television game show called Let's Make a Deal. The host, Monty Hall, would r1. A country’s government has devoted considerable funding to missile defense research over the past 20 years. The latest development is the Space-Based Infrared System (SBIRS), which uses satellite imagery to detect and track

MATH 533 Week 3 DQ 1 Ethics in Statistics Readings

MATH 533 Week 3 Homework

Why is it important to study ethics in statistics? Have you seen statistics misused? Without naming specific companies or people, can you provide examples?

Please find (on the Internet or from the Keller library) and post an article regarding ethics and statistics. Please attach the article, or provide its link in your

1. The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.3 miles per gallon.

2. The ages of a group of 50 women are approximately normally distributed with a mean of 49 years

MATH 533 Week 3 Quiz

MATH 533 Week 4 DQ 1 Case Statistics in Action Medicare

1. The average salary for a certain profession is $97,000. Assume that the standard deviation of such salaries is $33,500. Consider a random sample of 54 people in this profession and let x represent the mean salary for the sample.

2. Almost all companies utilize some type of year-end performance review for their employees.

Read the selection in your textbook pertaining to the Case: Statistics in Action: Medicare Fraud Investigations; load the data set for the case, MCFRAUD, into Minitab; answer the question about the case in the Discussion area; and likewise read and respond to the follow-on selections in the textbook for the case in the Statistics in Action Revisited.

MATH 533 Week 4 Homework

MATH 533 Week 4 Quiz

1. Health Care workers who use latex gloves with glove powder on a daily basis are particularly susceptible to developing a latex allergy. Each in a sample of 43 hospital employees who were diagnosed with a latex allergy based on a skin-prick test reported on their exposure to latex gloves.

1. A random samples of 1020 satellite radio subscribers were asked, “Do you have a satellite radio receiver in your car?” The survey found that 102 subscribers did, in fact, have a satellite receiver in their car.

2. Each child in a sample of 64 low-income children was administered a language and communication exam.

MATH 533 Week 5 DQ 1 Case Statistics in Action: Diary

MATH 533 Week 5 Homework

Read the selection in your text book pertaining to the Case: Statistics in Action: Diary of a Kleenex® User; load the data set for the case, TISSUES, into Minitab; answer the question about the case in the Discussion area; and likewise read and respond to the follow-on selections in the textbook for the case in the Statistics in Action Revisited.

1. A study of n = 90,000 first-time candidates for an exam found that the number of semester hours of college credit taken by the sampled candidates is summarized by x = 145.72 and s = 18.53. A professor claims that the true mean number of semester hours of college credit taken is 145.

MATH 533 Week 5 Quiz

MATH 533 Week 6 Course Project Part B Hypothesis

1. A group of professors investigated first-year college students’ knowledge of astronomy. One concept of interest was the Big Bang Theory of the creation of the universe. In a sample 0f 141 freshman students, 35 believed that the Big Bang Theory accurately described the creation of plantery systems. Baesd on this information, is it correct

Your Instructor will provide you with four manager speculations, a.-d., in the Doc Sharing file.

Using the sample data, perform the hypothesis test for each of the above situations in order to see if there is evidence to support your manager’s belief in each case a.-d. In each case use the Seven

MATH 533 Week 6 DQ 1 Case: Statistics in Action

MATH 533 Week 6 Homework

Read the Case: Statistics In Action: Legal Advertising—Does It Pay?, and answer the following questions. (The case is included in your textbook, Chapter 10.) The data set for the case study is LEGALADV, and it is available in your textbook resources, so you don't have to enter the data!

Summarize what the case is about, and what the variables represent.

1. A MINITAB printout relating the size of the diamond (number of carats) to the asking price (dollars) for 308 diamonds is shown below. Complete parts a through e.

2. The average driving distance (yards) and driving

accuracy (percent of drives that land in the fairway) for 8

MATH 533 Week 6 Quiz

MATH 533 Week 7 Course Project Part C: Regression

1. An association was formed by students to protest labor exploitation in the apparel industry. There were 18 student “sit-ins” for a “sweet-free campus” organized at several universities. Data were collected for the duration (in days) of each sit-in, as well as the number of student arrests. The data for 5 sit-ins in which there was at least one arrest and the results of a simple linear

Your Instructor will specify for you the dependent variable and the independent variables in your Case and data. Using MINITAB perform the regression and correlation analysis for the data by answering the following.

Generate a scatterplot for the specified dependent variable and the specified independent variable, including the graph of the "best fit" line. Interpret.

MATH 533 Week 7 DQ 1 Case: Statistics in Action

MATH 533 Week 7 Homework

Read the Case: Statistics in Action: Bid-Rigging in the Highway Construction Industry, in Chapter 11 of your textbook, and answer the following questions. The data set, FLAG, for the case study is available in the publisher’s website, so you don’t need to enter the data into Minitab by hand.

What is this case about? Describe the key variables.

1. Researchers developed a safety performance function (SPF), which estimates the probability of occurrence of a crash for a given segment of roadway. Using data on over 100 segments of roadway, they fit the model E(y) = + + , where y = number of crashes per three years, = roadway length (miles), and = average annual daily traffic (number of vehicles) = AADT.

MATH 533 Week 7 Quiz

1. Data on the average annual precipitation (y), altitude (x1), latitude (x2), and distance from the coast (x3) for a particular state were collected for 10 meteorological stations. The observations are listed in the table below. Consider the first-order model y = + + , + ε. Complete parts a through c.

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