Package deal for ISDS 361A Exam 2 Study Guide with Questions and Answers

ISDS 361A Practice Exam 1 with Questions and Answers In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of a(n) ANSWER categorical variable The __________ can be interpreted as the number of standard deviations a data value is from the mean o...

ISDS 361A Exam with Questions and Answers Business statistics ANSWER - Get information from data - Utilizing statistics we draw conclusions Business Analytics ANSWER is defined as the scientific process of transforming data into insight for making better business decisions Data ANSWER are...

ISDS 361A Test One with Questions and Answers A histogram is bi-modal. Then, ANSWER It has two modes A histogram is symmetric. Then, ANSWER It has no skewness A histogram of given data shows three clear peaks. Therefore, ANSWER There are three modes and there are three distinct groups in th...

A+ ISDS 361A Final Study Guide with Questions and Answers What is business statistics ANSWER Using STATISTICS *we draw conclusions* (extract useful information!) from data. With the extracted information, statistics help managers to make valid business decisions in response to such questions. ...

ISDS 361A Exam 1 with Questions and Answers A company has developed a new computer sound card whose average lifetime is unknown. In order to estimate this average, 200 sound cards are randomly selected from a large profuction line and tested; their average lifetime is found to be 5 years. The 200...

ISDS 361A Exam 2 with Questions and Answers The standard deviation of the sampling distribution of is also called the: ANSWER standard error of the sample mean As a general rule in computing the standard error of the sample mean, the finite population correction factor is used only if the: A...

ISDS 361A Final Exam Concept Questions and Answers uses all the data (the most efficient) ANSWER Standard deviation Probability ANSWER likelihood that a particular event will occurlikelihood that the random variable takes values within a particular range. coefficient of variation formula AN...

CSUF ISDS 361A Practice Exam 2 Version B Skordi Questions and Answers The following 5 questions are based on this information. Suppose a random sample of 18 uber drivers was taken, and the average age X¯ of these drivers was found to be 27.5 years. Construct a 99% confidence interval for the me...

CSUF Excel Lesson 1 Quiz ISDS 361A Skordi Questions and Answers What is the value in cell A18? Select one: a. b. ####### c. 2.2E+07 d. ANSWER a. Of the following, who has worked there the shortest? Select one: a. Sapir Ohayan b. Emily Jones c. Norm Gibson d. Julie Park ANSWE...

ISDS 361A Exam 2 Study Guide with Questions and Answers Suppose a random sample of 18 uber drivers was taken, and the average age x̄ of these drivers was found to be 27.5 years. Construct a 99% confidence interval for the mean age (µ) of all drivers. Assume that the age of drivers is normally ...

ISDS 361A Midterm 2 Exam with Questions and Answers What type of random variable would defective bowling balls be? ANSWER Discrete This describes the values of a random variable and the probability associated with these values. ANSWER Probability distribution One who values are not countabl...

CSUF Excel Lesson 2 Quiz ISDS 361A Skordi Questions and Answers If you were to count the number of cost values you had in column D, you would use the following function: Select one: a. COUNTIF b. COUNT c. COUNTA d. COUNTN ANSWER b. COUNT The formula you used for the Total Retail Value ...

ISDS 361A Midterm 1 Exam with Latest Questions and Answers Descriptive statistics ANSWER numerical data used to measure and describe characteristics of groups. Includes measures of central tendency and measures of variation. Inferential statistics ANSWER numerical data that allow one to genera...