Apple weights in an orchard are normally distributed. From a sample farmer Fred determines the mean weight of a box of apples to

Question

3 years ago

9

Apple weights in an orchard are normally distributed. From a sample farmer Fred determines the mean weight of a box of apples to

be 270 oz. with a standard deviation of 10 oz. He wonders what percent of the apple boxes he has grouped for sale will have a weight less than 255 oz.

Mathematics

2 answers:

Sonja [21] · Answer 1 · 2022-07-08T19:44:45+03:00

Sonja [21]3 years ago

8 0

Answer:

2.07 is the answer as of e.2020

Step-by-step explanation:

ollegr [7] · Answer 2 · 2022-07-08T18:03:17+03:00

Answer:

2.07 is the answer as of e.2020

Step-by-step explanation:

Mean = 270 Standard deviation = 10 x = 255 Formula for z-score, z = (x - mean)/SD z = (255 - 270) / 10 => z = -15 / 10 => z = -1.5 So by referring to z-table, -1.5 correlates to 0.0668 that implies to 0.07 So 7% of the boxes of Apples weight less than 255oz. The percentage of boxes is in the range of 255 oz and 270 oz, Now calculating the requiring percentage 50% - 7% = 43%