5. Mean for sample of n=10

6. n = 10: t = 1.361df = 9Critical value = 2.262 Conclusion: accept the null hypothesis; no difference between this sample and the population as a whole

7. n = 10: t = 1.361p =.207.207 >.05 so this is not significant

9. Confidence intervals The range of population means that could produce a sample like the one that we have at random.

10. How does SPSS provide information about the confidence interval? lower limit upper limit

11. Lower limit: 38864 – 1805.15 = 37058.85 Upper limit: 38864 + 7257.15 = 46111.15