Money spend by n=49 randomly selected football fans at a single game yields a sample mean = $75 and s= $20. Find a 95% confidence interval for the true mean of all football fans. 2. The sentence complexity scores of a random sample of 64 children had a sample mean 8.00 and s= 9. Construct a 95% confidence interval for the mean of sentence complexity score of all children. 3. A random sample of 10 U.S adult males who jog at least 15 miles per week had the following pulse rates per minutes. Find a 99% confidence interval for the mean pulse rate of all U.S. adult males who jog at least 15 miles per week. Assume normal distribution for pulse rates. 54 50.5 50.8 53 52.5, 53, 54, 52, 53.5, 55 4. Suppose that in a random sample of 200 adults, 75 were victims of a crime. Estimate the true proportion of adults who were victims of a crime using a 99% confidence interval. 5. A university dean randomly selects 200 students and finds that 124 of them are receiving financial aid. Use a 95% confidence interval to estimate the true proportion of students on financial aid