BSAN 160

Data set - correct answers Also known as data source or database contains the data used to build visualizations What are the data source types in tableau? - correct answers - Spreadsheets - Relational databases - Cloud data - Other types of connections Spreadsheets - correct answers Found in Microsoft XL or Google sheets, organize his data in a flat structure, which means the records are stored as single rose of data Relational databases - correct answers Store data in multiple table...

Give the definition of a p-value - correct answers the probability of observing a test statistic at least as extreme as the one observed assuming the null hypothesis is true Explain/provide the Central Limit Theorem - correct answers for sufficiently large sample size the distribution of the sample mean is approximately normal State the linear regression formula and list the three key assumptions - correct answers Y = B(0) + B(1)X + E 1) linear relationship 2) constant variance 3) err...

P-Value Definition - correct answers The probability of observing a test statistic at least as extreme as the one observed assuming the null hypothesis is true. Central Limit Theorem - correct answers For a sufficiently large sample size the sample mean follows a normal distribution. Linear Regression Formula - correct answers Y = B0 + (B1)(X1) + (B2)(X2) ..... + E Why do we consider unobserved sample mean to be a random variable? - correct answers Not yet observed sample means are cons...

What is p-value? - correct answers A p-value is the probability of observing a test statistic at least as extreme as the one observed assuming the null hypothesis is true. State the Central Limit Theorem in words. - correct answers For a sufficiently large sample size, the distribution of the sample mean will be approximately normal Why do we consider an unobserved sample mean to be a random variable? - correct answers Not yet observed sample means are considered random because different s...

Numbers In Scientific Notation All Correct (A+ Graded)

company would most likely prepare a proposal for which of the following reasons? a. To make an offer to solve problems, provide services, or sell products b. To advertise for applicants to fill an open position c. To announce a new wellness program for employees d. To deliver bad news to employees - correct answers a. To make an offer to solve problems, provide services, or sell products All the following statements about proposals are accurate except_________. a. proposals can b...

Julie Miller, a manager at the health tech company, Wellness Path, oversees two departments in the wearables business line: Product Development (referred as Department 1), and Product Testing (referred as Department 2). Both departments focus on bringing impactful products to the market that provide a (3)competitive advantage due to their design features and interoperability with other devices. Table 1 below shows selected descriptive statistics for age in Department 1 and Department 2. Quest...

Researchers studying the relationship between honesty, age, and self-control conducted an experiment on 160 children between the ages of 5 and 15. Participants reported their age, sex, and whether they were an only child or not. The researchers asked each child to toss a fair coin in private and to record the outcome (white or black) on a paper sheet, and said they would only reward children who report white. Half the students were explicitly told not to cheat and the others were not given any e...

real-world data can be: - correct answers misaligned, complex, and inaccurate -- because of this, analysts spend a lot of time being data janitors what is noise in data? - correct answers missing values and outliers/extreme values what are the four steps in the scientific approach to systematic preprocessing phases - correct answers 1. data consolidation 2. data cleaning 3. data transformation 4. data reduction what is the art of data processing? - correct answers preprocessing exper...

in what forms can data be? - correct answers structured or unstructured what is structured data? - correct answers organized as data arrays (spreadsheets) with variables, observations, and values what are variables? - correct answers characteristics of members of a population (age, gender, etc) what are observations? - correct answers list of all variables for a single member of a population what are values? - correct answers measurements of each observation for each variable what...