please check the answers!!!!!!!!!!!!!!!!!!!!!!! 1. What are your hypotheses? a.
ID: 3333207 • Letter: P
Question
please check the answers!!!!!!!!!!!!!!!!!!!!!!!
1. What are your hypotheses?
a. Ho: Fayette Co cost 2017 < Fayette Co cost 2016
H 0 : Fayette Co 2017< Fayette Co 2016
b. Ha: Fayette Co 2017 > Fayette Co cost 2016
H 0 : Fayette Co 2017> Fayette Co 2016
2. What is the mean cost for 2016? 25985.89
3. What is the mean cost for 2017? 30988.89
4. What is the n? 18
5. What’s the alpha level? 0.05
6. What is the degrees of freedom (df)? 17
7. Which statistical test will you use for hypothesis testing? t-Test: Paired Two Sample for Means
8. Will this be a one-tailed or two-tailed test? One- tailed because >and <
Critical value method
9. What was the test statistic (tStat) given by Excel? T-test= -3.62678129748026
10. What was the critical value given by Excel that you used? 1.73960672607507
P-value method
11. What is the alpha-level? 0.05
12. What was the p-value given by Excel that you used? 0.0010420785238483
13. What is your conclusion? Relate this to the Ho and Ha.
Reject H0 if t-test < critical value
The critical value is =1.74& The t-test= -3.627
We reject H0 because the -3.627<1.74
And if the H1 : p < a we will reject the H0
This mean p(0.0010) < a(0.05)
We reject H0 because p< a
Explanation / Answer
both answer are same
t-Test: Paired Two Sample for Means Variable 1 Variable 2 Mean 25958.11111 30989.11111 Variance 4241721.869 24477991.52 Observations 18 18 Pearson Correlation -0.279867864 Hypothesized Mean Difference 0 df 17 t Stat -3.63801779 P(T<=t) one-tail 0.001016967 t Critical one-tail 1.739606716 P(T<=t) two-tail 0.002033933 t Critical two-tail 2.109815559Related Questions
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