5. The American Community Survey sampled 1932 people in Colorado and asked them how long it took them to commute to work each day. The sample mean one-way commute time was 24.5 minutes with a standard deviation of 12.0 minutes. A transportation engineer claims that the mean commute time is less than 25 minutes. Do the data provide convincing evidence that the engineer's claim is true? Use a significance level of a = 0.05. Check the assumptions, state the test you use, the hypotheses, the test statistic, and p-value and state your conclusion. 6. A Pew poll surveyed 1802 internet users and found that 829 of them had posted a photo or video online. Can you conclude that less than half of the internet users have posted photos or videos online? Use a significance level of a = 0.05. Check the assumptions, state the test you use, the hypotheses, the test statistic, and p-value and state your conclusion