Question 29 1 pts Research question: On average, do students spend more than $300 per semester on textbooks? A hypothesis test was conducted with a 0.05 alpha level. In a random sample of 50 students, the mean was $315 with a standard deviation of $80. The p value was 0.095, so the null hypothesis was not rejected. Assuming all other factors are held constant, which of the following changes would lead to a smaller p value? Changing the hypothesized population mean to $315 Decreasing the alpha level to 0.01 O Increasing the sample size to n=500