One consequence of the popularity of the Internet is that it is thought to reduce television watching. Suppose that a random sample of 35 individuals who consider themselves to be avid Internet users results in a mean time of 2.01 hours watching television on a weekday. Determine the likelihood of obtaining a sample mean of 2.01 hours or less from a population whose mean is presumed to be 2.45 hours.

sample size , n =55

\sigma = s/\sqrt{n} = 2/\sqrt{55}

= 0.26968

likelihood of obtaining a sample mean of 2.00 hours or less

P(X<=2) = P ( Z <= (2-2.35)/0.26968) = P(Z <= -1.292835)

= 0.0972

i.e likelihood percentage is 9.72%

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

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