October 4, 2021

Statistics questions

    Define a simple linear regression. What is/are the difference(s) between simple linear regression and a multiple regression? Define a dependent variable. Define an independent […]
October 7, 2021

Linear regression analysis

    Demand for stereo headphones and MP3 players for joggers has caused Nina Industries to grow almost 50 percent over the past year. The number […]
October 9, 2021

Data that can be thought of as random.

  Many business activities generate data that can be thought of as random. An example described in the textbook is the servicing of cars at an […]
October 9, 2021

Data Collection

    Compare and contrast the following methods of collecting data: Interview Instrument administration (questionnaires) Observation Examination of artifacts (documents, materials). Reference Hagen, F. E. (2010). […]
October 12, 2021

Statistics

    At a school pep rally, a group of sophomore students organized a free raffle for prizes. They claim that they put the names of […]
October 13, 2021

Applications Of Probability

    Suppose a professor splits their class into two groups: students whose last names begin with A-K and students whose last names begin with L-Z. […]
October 18, 2021

Statistically the same

  During the recent election season, you saw many instances where polls were taken and reported, along with the confidence level of the estimate. For example, […]
October 18, 2021

Normal Probability Distributions

In a randomly selected sample of women ages 20-34, the mean total cholesterol level is185 milligrams per deciliter with a standard deviation of 40.2 milligrams per […]
October 19, 2021

Types of charts.

  The chart you select to represent your data will be influenced by many factors. Kirk (2016) has put each chart into the five main families […]