Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores:

Grades	73.5	73.5	61.9	62.7	68.4	74.4	62.7	83.2	69	66.5

Test grades are believed to be normally distributed. Use a significance level of 5%.

1. State the alternative hypothesis: HA:HA:
2. State the mean of the sample:
3. State the standard error of the sample means:
4. State the test statistic: t=t=
5. State the p-value:
   • >65>65
   • <65<65
   • 6565