Solve the given problem and in the blank space provided, Fill-in-the-blank with a Numerical Answer Only. TEXT or SYMBOLS such as %, $, or punctuation marks (such as comma, semicolon, and colon) MUST NOT be part of the answer to avoid system grading errors. 1 Points: 3 Your COMM 215 instructor took a random sample of 16 students to examine the number of hours per week students surf the Internet for either personal information or material for course activities. The sample mean response was 6.45 hours and the sample standard deviation was 1.1 hours. Based on these results, and assuming normality for the population distribution of surfing time in hours, the instructor constructed a confidence interval extending from 5.87 to 7.14 hours per week for the population mean. What is the confidence level used for this interval? ic W Type your numerical an Numbers only