Question 1 A random sample of 101 recorded deaths in the United States during the past year showed an average life span of 71.8 years. Assuming a sample standard deviation of 8.9 years, does this seem...

Extracted text: Question 1 A random sample of 101 recorded deaths in the United States during the past year showed an average life span of 71.8 years. Assuming a sample standard deviation of 8.9 years, does this seem to indicate that the population variance is more than 64 squared years? Use a 0.05 level of significance. Answers that use CIs will not be accepted. Formulate and carry out the appropriate hypothesis test using the critical region approach.