Pastor Floyd G Green. 11:23PM (4 minutes ago) to me 3 Standard Scores and Z-Scores Calculate a z-score using a given value and the corresponding mean and standard deviation. The sales data for January and February of a frozen yogurt shop are approximately normal. The mean daily sales for January was $300 with a standard deviation of $20. On the 15th of January, the shop sold $310 of yogurt. The mean daily sales for February was $320 with a standard deviation of $50. On the 15th of February, the shop sold $340 of yogurt. Which month had a higher z-score for sales on the 15th, and what is the value of that z-score? a.) January, with a z-score of 0.5. b.) January, with a z-score of 0.2. c.) February, with a z-score of 0.4. d.) February, with a z-score of 1. SUBMIT MY ANSWER Report an issue with this question Katherine Williams Katherine Williams Ryan Backman Ryan Backman Jonathan Osters Jonathan Osters Sophia Sophia Standard Scores and Z-Scores Sophia Sophia Make my favorite instructor PDF Version WHAT'S COVERED This tutorial will cover the topic of z-scores. Our discussion breaks down as follows