Plz help been stuck on it for awhile
1 answer:
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Answer:
a
b
Step-by-step explanation:
Considering question a
From the question we are told that
The mean is
The standard deviation is
The standard error of mean is mathematically represented as
=>
=>
Generally the probability that the mean volume of a random sample of 144 bottles is less than 12 oz is mathematically represented as
From the z table the area under the normal curve to the left corresponding to -0.3425 is
=>
Considering question a
From the question we are told that
The mean is
Generally the probability that the mean volume of a random sample of 144 bottles is less than 12 oz is mathematically represented as
From the z table the area under the normal curve to the left corresponding to -1.0274 is
=>