What two assumptions must be met when you are using the z test to test differences between two means?
Develop an SQL query to determine which holiday had the most sales and then drill down via another query to determine for that holiday which dealership had the most sales.
August 4, 2017Discuss the importance and efficacy of financial statements used in the decision-making process of health care organizations.
August 4, 2017What two assumptions must be met when you are using the z test to test differences between two means?
Statistics class. Must be 250 words must cite work if applicable.
“Testing the Difference Between Two Means.”
- What two assumptions must be met when you are using the z test to test differences between two means? Can the sample standard deviations s1 and s2 be used in place of the population standard deviations ?1 and ?2?
