Null hypothesis and alternative hypothesis
1. Describe null hypothesis and alternative hypothesis
2. Discuss type-I and type-II errors
3. Describe Alpha (????) and explain how it is used.
4. Distinguish between https://exploringstatistics.com/images/studyguide/x_alpha2.png = .05 and p = .05.
Use the following data set to answer the questions.
Data Set: Sample scores: 2, 3, 4
1. What will be the effect size index for = 1.00?
2. What will be the value of the standard error of the mean for the scores in data set?
3. Test the scores in data set against H0: µ = 1.00. What will be the t value?
4. What is the effect size index for = 4.00?
5. Test the scores in data set against H0: m = 4.00. What is the t value that result of it?