MATH_3370 Intro Theory Stats Parent

1'3. random sample of 105 lightning flashes in a certain region resulted in a sample average radar echo duration of 0.86 sec and a sample standard deviation of 0.34 sec. Calculate a 99% {two-sided] condence interval for the true average echo duration pr. (Give answers accurate to 3 decimal places.) I[ r } Interpret the resulting interval. Q We are 99% condent that this interval does not contain the true population mean. (E) We are 99% condent that this interval contains the true population mean. 0 We are 99% condent that the true population mean lies below this interval. 0 We are 99% condent that the true population mean lies above this interval. You ma\\_.lr need to use the appropriate table in the Appendix of Tables to answer this