Sophia Statistics Final Milestone (Complete) Latest Review 2023 Practice Questions and Answers, 100% Correct with Explanations, Highly Recommended, Download to Score A+

Sophia Statistics Final Milestone (Complete) Latest Review 2023 Practice Questions and Answers, 100% Correct with Explanations, Highly Recommended, Download to Score A+ Sukie interviewed 125 employees at her company and discovered that 21 of them planned to take an extended vacation next year. She finds that the proportion of people taking extended vacations nationally is 15%. The z statistic for this data is __________. -0.56 -0.45 0.56 0.45 RATIONALE 6/29/2020 Sophia :: Welcome To make things a little easier, let's first note the denominator We can now note that Finally, subbing all in we find CONCEPT Z-Test for Population Proportions 2 Jesse takes two data points from the weight and feed cost data set to calculate a slope, or average rate of change. A rat weighs 3.5 pounds and costs $4.50 per week to feed, while a Beagle weighs 30 pounds and costs $9.20 per week to feed. Using weight as the explanatory variable, what is the slope of the line between these two points? Answer choices are rounded to the nearest hundredth. $0.31 / lb. $1.60 / lb. $5.64 / lb. $0.18 / lb. RATIONALE In order to get slope, we can use the formula: . Using the information provided, the two points are: (3.5 lb., $4.50) and (30 lb., $9.20). We can note that: CONCEPT