The heights of a certain population of corn plants follow a normal distribution with mean 145cm

and standard deviation

1 thought on “The heights of a certain population of corn plants follow a normal distribution with mean 145cm<br /><br />and standard deviation”

1. Answer:

   The heights of a certain population of corn plants follow a normal distribution with mean 145cm

   and standard deviation 22 cm.

   1 percentage of the plants are between 135 and 155 cm tall?

   2 Suppose we were to choose at random from the population a large number of samples of 16 plants

   each. In percentage of the samples would the sample mean height be between 135 and 155cm

   3 If X represents the mean height of a random sample of 16 plants from the population, is

   P(135 ≤ X ≤ 155)

   4 If X represents the mean height of a random sample of 36 plants from the population,

   P(135 ≤ X ≤ 155)

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