Maurice Tutor

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Category > Management Posted 15 Oct 2017 My Price 6.00

Sodium in Frozen Food

14.  Sodium in Frozen Food The average number of milligrams (mg) of sodium in a certain brand of low-salt microwave frozen dinners is 660 mg, and the standard deviation is 35 mg. Assume the variable is normally distributed.

 

a.      If a single dinner is selected, find the probability that the sodium content will be more than 670 mg.

b.      If a sample of 10 dinners is selected, find the probability that the mean of the sample will be larger than 670 mg.

c.      Why is the probability for part a greater than that for part b?

15.  Worker Ages The average age of chemical engineers is 37 years with a standard deviation of 4 years. If an engineering firm employs 25 chemical engineers, find the probability that the average age of the group is greater than 38.2 years old. If this is the case, would it be safe to assume that the engineers in this group are generally much older than average?

 

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Maurice Tutor
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Status NEW Posted 15 Oct 2017 05:10 PM My Price 6.00

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