1.A teacher administers a standardized test to know how well the gifted students in class perform relative to other classes. normally distributed, with a mean =50 and standard deviation = 10. Class of 31 students has an average score of 55.

Did the gifted students score higher on the exam?

Find the test statistic.

State the p-value and interpret.What does the p-value says in terms of the null hypothesis?

conclusion please.