Suppose that an independent research company was tasked with testing the validity of complaints against a pesticide manufacturing firm for under-filling their 20 lb bags of pesticide. Past experience has shown that the amount of pesticide
dispensed by the machines that fill the bags follows a normal distribution with a mean of 20 lb and a standard deviation of
0.6 lb.
To verify the validity of the complaints, a researcher randomly selected 16 of the firm's 20 lb pesticide bags and recorded the
following weights.
19.81, 18.54, 19.94, 18.52, 18.5, 18.72, 19.38, 19.37, 19.08, 19.1, 18.54,20.27, 20.23, 19.77, 19.14, 20.31
If you wish, you may download the data in your preferred format.
The mean weight of the 16 bags collected was 19.326 lb. Calculate the value of the one-sample z- statistic.
Give your answer precise to three decimal places.
2

answer: the answer is ann

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages

step-by-step explanation:

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