Question 6 v |T_./1/5 pts 01 3 3 Details Score on last try: 1 of 5 pts. See Details for more. > Next question 8 Get a similar question You can retry this question below A researcher wants to determine the number of hours per week that the typical student at CRC watches television. He wants to estimate the mean to within 2 hours with 90% confidence. Results from a previous survey indicate that the number of hours of television watched per week has a standard deviation of 10.4 hours. a. Estimate the sample size needed. :1