The inside diameter of a randomly selected piston ring is a random variable with mean value 14 cm and standard deviation 0.05 cm. Suppose the distribution of the diameter is normal. (Round your answers to four decimal places.) (a) Calculate P(13.99 ≤ X ≤ 14.01) when n = 16. P(13.99 ≤ X ≤ 14.01) = 0.4207 Incorrect: Your answer is incorrect. (b) How likely is it that the sample mean diameter exceeds 14.01 when n = 25? P(X ≥ 14.01) = 0.4207 Incorrect: Your answer is incorrect. Y

a) 0.5762

b) 0.1587

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 14 cm

Standard Deviation, σ = 0.05 cm

We are given that the distribution of diameter is a bell shaped distribution that is a normal distribution.

Formula:

a) P(13.99 ≤ X ≤ 14.01 when n = 16)

Standard error due to sampling =

b) P(sample mean diameter exceeds 14.01 when n = 25)

Standard error due to sampling =

Calculation the value from standard normal z table, we have,  

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

the population of other specie of birds will decline or other specie of birds will find some alternate source of food to survive.

explanation:

according to the competitive exclusion principle, which is also known as gause's law, two specie living in the same niche and feeding on the same resource cannot co-exist stably.

as we have well studied the theory of natural selection which states that only those organisms survive which have better tendency to compete for food and adapt to the environmental conditions.

coming towards the question, what wi ll happen when one species outcompetes the other for the small fish , the other specie will not get enough food and will start to die or decline in population. eventually either other specie needs to find another alternative food source for itself or migrate at some other location where there is less competition otherwise it will just not exist anymore at that niche.

hope it !