Question 3: Using Excel, conduct a NHST to determine whether there is a correlation in the population. Use a 0.05 significance level. Use the Excel file Assignment10_R1.xlsx, Exercise1_Correlation NHST worksheet) Alpha 0.05 n 22 df 20 CV t 2.086 r -0.6599 r2 0.4354 t -3.927 p-value 0.00083 Write the Null & Alternate Hypotheses (Follow the examples shown in Clear-Sighted Statistics. Use the appropriate Greek letters and mathematical symbols). H0: H1: 2. Write the Decision Rule using the Critical Value(s), not p-values. 3. Calculate the value of the test statistic and the p-value. 4.What is your decision regarding the Null Hypothesis? Frame your report in the context of this problem
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Question 3: Using Excel, conduct a NHST to determine whether there is a
| Alpha | 0.05 |
| n | 22 |
| df | 20 |
| CV t | 2.086 |
| r | -0.6599 |
| r2 | 0.4354 |
| t | -3.927 |
| p-value | 0.00083 |
- Write the Null & Alternate Hypotheses (Follow the examples shown in Clear-Sighted Statistics. Use the appropriate Greek letters and mathematical symbols).
H0:
H1:
2. Write the Decision Rule using the Critical Value(s), not p-values.
3. Calculate the value of the test statistic and the p-value.
4.What is your decision regarding the Null Hypothesis? Frame your report in the context of this problem
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