please help

\fGiven IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15, the proportion of people with IQs less than 130 is A random sample of 10 batteries is obtained. It is determined that the mean life is 6 hours, with a sample standard deviation of 1 hour. Find the 95% condence interval (CI) for the unknown mean of the population. Interpret the CI. Note: this is a small sample size problem with an unknown population standard deviation. You will need to use a t-table to help nd the Cl. 0 a) 5.2847 to 6.7153 hours 0 b) 4.2847 to 5.7153 hours 0 c) 4.7153 to 5.2847 hours 0 d) 5.7153 to 6.7153 hours