A hot tub company recently calibrated all its machines during an expensive maintenance cycle performed by an outside company. However, defective pumps with small cracks are being made on the production line. The manager reviews the data about the errors and discovers that more errors occur during the night shift than during the day shift.

Which type of activity is this manager performing?

In an experimental study, researchers are testing a new flea preventive medication on dogs using a blind study. Dogs are treated with the new medication or with a placebo.

Who should know which dogs are given the medication or the placebo for this blind study?

Which tool should be used to closely monitor inputs and outputs?

Which tool sorts data into categories to help teams identify the most significant factors that contribute the most to problems?

A company runs a regression analysis to determine sales based on advertising expenditures, which can be shown in a linear equation as y = 2x + 25,000. The company plans to spend $20,000 on advertising.

Which sales figure should the company expect to generate based on the given equation?

Why would a human resources department use both mean and median when doing a salary evaluation of a department?

Which two results occur when the null hypothesis is accepted using an F-test?

Choose 2 answers.

Which graphical representation depicts the steps that compose a process?

Amusement Park W is in California. Amusement Park X is in Texas. A survey asks 1,000 people living in California if they prefer Amusement Park W or X.

Which problem exists with this survey?

What is the primary goal of Six Sigma?

Which tool is often referred to as a fishbone chart or diagram?

What is a statistical process control procedure for a drill manufacturer?

Which analytic used in healthcare is calculated as a proportion of new cases compared to person-time units?

What classifies analytics as descriptive, predictive, or prescriptive?

A researcher seeks to pass a bond issue and asks a sample of respondents who have a bachelor’s degree if they are voting in favor of the bond because it would be beneficial to the county.

Which type of error does this represent?

Which element of an experimental study is described as the procedures applied to each subject?

Which graphical display is used to examine the distribution of a data set with quartiles?

A sample of 1,020 people was asked how many minutes they exercise on a typical day. The data were plotted and determined to beskewed leftwith a mean of 44.75 minutes.

Which boxplot correctly graphs this data?

A car dealership sells both new and used cars. The number of new cars sold on a given day ranges from 5 to 30 while the number of used cars sold ranges from 5 to 40. The number of used cars sold is mutually exclusive to the number of new cars sold.

Which statistic would be used to compare the number of new and used car sales on any given day?

A hospital hires a third-party company to train its surgery team on the latest techniques and assess the team’s current procedures in the operating room.

Which results-based management (RBM) stage is represented in this scenario?

An organization develops a new strategic plan and seeks ways to improve process performance by reducing variation to only 3.4 defects per million process outputs.

Which tool can the organization use to meet this goal?