In the lab, you use a special balloon that is permeable to w…
In the lab, you use a special balloon that is permeable to water but not sucrose (sugar) to make an “artificial cell.” The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40% sucrose and 60% water. Which of the following will occur?
Read DetailsCarlson School of Management recently changed its logo. Give…
Carlson School of Management recently changed its logo. Given the rating of the new logo, you decide to convince the school to review its decision to change the logo. To do so, you decide to run an A/B test to determine whether or not to go back to the old logo (Logo 1) or keep the new one (Logo 2). You selected two groups G1 and G2, to run the A/B experiment. Group G1 rated Logo 1 and Group G2 rated Logo 2. You can consider the rating to be on a scale of 1-10. Assuming a significance level of 0.01. Clearly define the null hypothesis and the alternative hypothesis for this A/B test. Identify the independent variable and the dependent variable. Would the extraneous variables be addressed if G1 and G2 were selected from among first year students, faculty, and staff at Carlson? Justify your answer, Can you use a two-sample t-test assuming equal variances? Justify your answer.
Read DetailsYou conduct an A/B test to determine whether or not female i…
You conduct an A/B test to determine whether or not female influencers are paid more than male influencers on social media. With a confidence level of 0.05, you run a t-test and get a t-stat = 3.5345 and a p-value of 0.05. What are the dependent and independent variables? What is the conclusion of the test? You change the significance level to 0.01 and run a second t-test. You get a t-stat = 5.754 and a p-value = 0.0002. What is the conclusion of this test?
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