I need help with a Statistics question. All explanations and answers will be used to help me learn.
q1. Calculate the z(statistic) for the following data:
US average gas price is $2.67, with a standard deviation of $0.30.
Florida’s average gas price is $2.39, we sampled 200 gas stations.
Answer : 14
Based on the z(statistic) in question above, what can we conclude about the average price of gas in Florida?
Ho: Black(hiring rate) = White(hiring rate)
H1: Black(hiring rate)
We calculated a z(statistic) of 8.56.
What can we conclude about the hiring rate of black people? reject? fail to reject? what level of alpha?
q3. We want to know if people who read more novels have greater levels of empathy than people who read less novels. Construct a research hypothesis and a null hypothesis.