Jose reports that his overall average number of daily steps is 8,493. Jose's girlfriend Emily wants to test if her average daily steps is significantly higher than 8,493. She opens up her phone's fitness tracking app and records the total number of steps she took on twenty different randomly selected days. Which hypothesis test should she then use? O One mean (sigma known) One mean (sigma unknown) | Proctorio is sharing y Mean of differences, using dependent samples (paired data). O Difference of two means (independent samples) Several means (ANOVA) One proportion Difference of two proportions O Chi-Square test of independence