1 ounce (oz) is how many grams?

Identify the correct combination of code and figure. Note that the code is identical in each answer, only the figures differ!  

In R script, “position = dodge” does which of the following?

1 gram (g) is how many milligrams (mg)?

If an AB test yield results with the p-value of .04, which of the following is correct?

You are conducting an A/B test to evaluate the effectiveness of two different landing page designs for a website. Visitors to the site are randomly assigned to either version A or version B of the landing page. The primary metric for success is the conversion rate, or the percentage of visitors who take a desired action on the page. After collecting data for a month, you analyze the results to determine which version performed better. Which of the following statements is true regarding the analysis of an A/B test?

What is nearly always paired in a visualization?

A retail website is testing two homepage designs to improve user sign-up rates. Version A features a standard product layout, while Version B highlights customer testimonials. Define a clear null hypothesis and alternative hypothesis for this A/B test. Identify the independent variable and the dependent variable. What is an extraneous variable in this scenario and how would you address these? How will you decide which version to use?

You observe data where each row indicates an individual’s responses to a survey and there are two columns, one with how much the individual is willing to pay to have pizza delivered and the other with how much the individual is willing to pay for take-out pizza. What data structure does this correspond to? 

The main difference between a bar chart and a histogram is that: