Amazon.com has become one of the most successful online merchants. Two measures of its success are sales and net income/loss figures. The data can be found in the file MAT510_w10a1_Amazontxt-1.xls Use Excel to complete the following: Construct a scatter plot for Amazons net income/loss and sales figures for the period 1995“2015. Determine a polynomial model… Continue reading Amazon.com has become one of the most successful online merchants. Two measures

# Category: Statistics

## After reading the example above where one can see how probability values can be

After reading the example above where one can see how probability values can be used in managerial decision-making to establish a product guarantee post a comment where you think probability could be used to help solve other management-type questions/problems. Think of something at work past or present where you could apply the techniques in the… Continue reading After reading the example above where one can see how probability values can be

## Activity: TQM Charting Practice This activity consists of two problems. Problem

Activity: TQM Charting Practice This activity consists of two problems. Problem One Dr. Raymond Hill Director of Surgery for Forest Medical Center in Lake Park Illinois received some recent statistics concerning data on the surgeries performed in his center during 2019. He was somewhat surprised to see the high number of what is classified as… Continue reading Activity: TQM Charting Practice

This activity consists of two problems.

Problem

## Activity: Capital Budgeting Practice Complete the following and submit it in a W

Activity: Capital Budgeting Practice Complete the following and submit it in a Word document. Be sure to show your process and calculations: Assume you have just retired as the CEO of a successful company.A major publisher has offered you a book deal. The publisher will pay you $1 million up front if you agree to… Continue reading Activity: Capital Budgeting Practice

Complete the following and submit it in a W

## A Survey of 30 people to find out if they are left-handed or right-handed, and u

A Survey of 30 people to find out if they are left-handed or right-handed and use the following chart to create a contingency table with the information. Left handed= 6 Right handed = 24 Total Female lefty =4 righty=16 Male lefty Total= 2 righty=8 Answer the following questions about the information in your contingency table:… Continue reading A Survey of 30 people to find out if they are left-handed or right-handed, and u

## A t-test is only able to compare two means at a time. A t-test is used to determ

A t-test is only able to compare two means at a time. A t-test is used to determine if there is a statistical significance between the means of two groups. This is one of the many tests used for hypothesis testing. An ANOVA or Analysis of Variance can compare many means at a time and… Continue reading A t-test is only able to compare two means at a time. A t-test is used to determ

## A researcher studied women with breast cancer to better understand the associati

A researcher studied women with breast cancer to better understand the association between self-rated health and all-cause mortality (Prehn 1996). Women were interviewed twice and survival models were used to assess the association between self-rated health 12 months after breast cancer diagnosis and all-cause mortality. The following results were obtained from three different models: 1)… Continue reading A researcher studied women with breast cancer to better understand the associati

## A police officer pulls over an individual that was driving recklessly. The polic

A police officer pulls over an individual that was driving recklessly. The police office is trying to determine if the individual should be arrested for driving under the influence of alcohol. Consider these Hypothesis Statements Ho: The individual is not driving under the influence of alcohol. HA: The individual is driving under the influence alcohol.… Continue reading A police officer pulls over an individual that was driving recklessly. The polic

## A random sample of 100 felony trials showed a sample mean waiting time between a

A random sample of 100 felony trials showed a sample mean waiting time between arrest and trial = 173 days with a population standard deviation of waiting times = 28 days. Find a 99% confidence interval for the population mean waiting tianswer to two decimal places

## A Pew Research survey asked 2,373 randomly sampled registered voters their polit

A Pew Research survey asked 2 373 randomly sampled registered voters their political affiliation (Republican Democrat or Independent) and whether or not they identify as swing voters. 35% of respondents identified as Independent 23% identified as swing voters and 11% identified as both. Are being Independent and being a swing voter disjoint i.e. mutually exclusive?… Continue reading A Pew Research survey asked 2,373 randomly sampled registered voters their polit