Regression and Hypothesis Testing Flashcards

1
Q

Hypothesis for a positive correlation one tailed test

A

H0: p = 0
H1: p > 0

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2
Q

Hypothesis for a negative correlation one tailed test

A

H0: p = 0
H1: p < 0

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3
Q

Hypothesis testing for a correlation two tailed test

A

H0: p = 0
H1: p ≠ 0

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4
Q

Method for Correlation Test

A
  • State H0 and H1
  • Use: Significance Level and sample size to find the critical value using the PMCC table
  • REMEMBER IF TWO TAILED ÷ Sig Level by 2
  • Draw a diagram and shade the critical region
  • If r is in the critical region -> Reject H0 and accept H1
  • If r is not in the critical region -> Accept H0 and reject H1
  • Write a conclusion in context
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5
Q

Method for Hypothesis Testing

A
  • State the test statistic
  • State the distribution of X
  • State the Null and Alternative hypothesis
  • Find the probability and compare it to the significance level
  • State the conclusion in context
  • If the probability < significance level:
  • Reject the H0 and accept H1
  • If the probability > significance level:
  • Accept the H0 and Reject H1
  • If the observed value falls into the critical region, reject H0 and accept H1. Otherwise, accept H0 and reject H1.
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6
Q
A
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