The average adult gets 7.45 hours of sleep each night, with a standard deviation of 0.65 hours. A pharmaceutical company developing a sleep aid is researching how much sleep the top 1% of adults get each night, on average. How many hours of sleep must an adult get each night to be in the top 1% if the company is only basing their initial research on the sleep habits of 30 adults? Be sure to round to the nearest hundredth. Use the z-table below: Z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 1.8 0.964 0.965 0.966 0.966 0.967 0.968 0.969 0.969 0.970 0.971 1.9 0.971 0.972 0.973 0.973 0.974 0.974 0.975 0.976 0.976 0.977 2.0 0.977 0.978 0.978 0.979 0.979 0.980 0.980 0.981 0.981 0.982 2.1 0.982 0.983 0.983 0.983 0.984 0.984 0.985 0.985 0.985 0.986 2.2 0.986 0.986 0.987 0.987 0.987 0.988 0.988 0.988 0.989 0.989 2.3 0.989 0.990 0.990 0.990 0.990 0.991 0.991 0.991 0.991 0.992 2.4 0.992 0.992 0.992 0.992 0.993 0.993 0.993 0.993 0.993 0.994 2.5 0.994 0.994 0.994 0.994 0.994 0.995 0.995 0.995 0.995 0.995 Round the z-score, o; and to two decimal places. Sorry, that's incorrect. Try again? z-score 2.33