Welcome to Westonci.ca, where curiosity meets expertise. Ask any question and receive fast, accurate answers from our knowledgeable community. Experience the ease of finding reliable answers to your questions from a vast community of knowledgeable experts. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

An article in the San Jose Mercury News stated that students in the California state university system take
4.8 years, on average, to finish their undergraduate degrees. A freshman student believes that the mean
time is less and conducts a survey of 39 students. The student obtains a sample mean of 4.3 with a sample
standard deviation of 1.8. Is there sufficient evidence to support the student's claim at an a = 0.05
significance level?