In a study to determine the mean IQ score of college students, 450 students were randomly selected and the mean IQ was found to be 103. Conduct a hypothesis test that uses a 0.05 significance level to test the claim that the mean IQ score of Broward College students is greater than 105. Assume that the standard deviation of IQ scores is 15.
1. State the null and alternative hypothesis
2. What is the value of test statistic
3. Calculate the P-value
4. State your final Conclusion