In a recent survey of 390 community college students, 115 said they have previously owned a motorcycle. Use this information to answer the following (round to the nearest hundredth): 1. What is the point estimate? (use the appropriate symbol) 2. Construct a 95% confidence interval. 3. Interpret the interval created in #2. 4. What is the margin of error in your confidence interval in #2? 5. What are two things you could do if you wanted to do if you want to make the margin oferror decrease? A sample of 15 randomly selected math majors has a grade point average of 2.86 with a standard deviation of 0.78. Assume the population has a normal distribution. Answer the following (round to the nearest hundredth): 6. Find the point estimate. (Use appropriate symbol) 7. Construct a 90% confidence interval for the population mean. 8. interpret the confidence interval. 9. What is the margin of error? 10. In order to construct a confidence interval for the population mean, either the population is distributed, or the sample size is greater than