# contribute three substantive posts for each selection

*label*English

*timer*Asked: Dec 6th, 2018

*account_balance_wallet*$10

**Question description**

**contribute three substantive posts **____ As discussed in our readings, what are the steps involved in hypothesis testing? Why is it important to say we either reject or do not reject the null hypothesis? Compare and contrast the t-test and the z-test? When would you run a t-test instead of a z-test?

*contribute **three*** substantive posts **What are some concepts behind variance analysis? Why is it important to test for variances in your data? Explain. How is variance analysis used in your profession? Provide an example. Compare and contrast the One-Way and Two-Way ANOVA? How are they similar and how do they differ?.

*contribute **three** substantive posts***-**-What is the purpose of using
correlation analysis? How may correlation analysis be used in business
decisions or in relation to strategy formulation and implementation? What is
the purpose of using correlation analysis? How may correlation analysis be used
in business decisions or in relation to strategy formulation and
implementation?

*contribute **three** substantive posts***---**What is the purpose of using multiple regression analysis? Does multiple regression have more than one role? How man it be used to formulate strategies? Provide examples related to strategy formulation and implementation. Discuss the relationship between independent and dependent variables with regard to correlation and regression analysis. What is the purpose of having a dependent variable and independent variables for multiple regression analysis?

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