In the population of the United States, the mean IQ is to be 100. The researcher tested his hypothesis by selecting 40 people from the population at random, and tested everyones IQs and he found that the average score was 103 with a standard deviation of 9.5.

1 State the hypotheses.

2 Compute the test statistic.

3 Find the p-value.

4 State the conclusions.

please show all workings