A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 407 gram setting it is believed that the machine is un the bags. A 14 bag sample had a mean of 404 grams with a standard deviation of 22. A level of significance of 0.025 will be used, Assume the population distr s approximately normal, Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places nswer ow to enter your answer Tables Keyboar Reject He <

Identity  the null and alternative hypotheses, test statistic,  p value, state final conclusion

incorrect Using traditional methods, it takes 97 hours to receive a basic flying license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 110 students and observed that they had a mean of 98 hours. Assume the standard deviation is known to be 7. A level of significance of 0.01 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer to 2 decimal places. Enter the value of the test statistic. Answer 国 Tables E Keypad How to enter your answer Keyboard Shortcuts Tutor Skip Try Similar Submit Answer O 2020 Hawkes Learning MacBook Air 80 888 esc F1 F2 F3 F4 FS F6 F9 F10 F11 %23 $ % & 1 3 4 5 6 7 8 9 dele- { Q W E Y P ab A F G H J K L s lock C V control option command command option

Aspirin is packed in 120 tab bottles with weight normally distributed with mean 600g and standard deviation 6g.  Rejected bottles are those whose weight differs from the mean weight by 15g or more.  That is, rejected bottles have weight either too small or too large.  We want to find out how many bottles will be rejected from a daily production of 5000 bottles. 1,Do we have to calculate one z-score or two z-scores?     2. The negative z-score is    3. The positive z-score is      4.How many bottles, of the 5000, do we anticipate to have to reject?

I don't understand can some help, and can you please show work and formula use.

Suppose that the average number of Facebook friends users have is normally distributed with a mean of 112 and a standard deviation of about 48. Assume forty-six individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. 1. the group of 46, find the probability that the average number of friends is more than 123. 2. Find the first quartile for the average number of Facebook friends.