Half of the students in Max's class volunteer at the local community center. Fifteen students do not volunteer. If there are 12
2 answers:
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Answer: 0.5467
Step-by-step explanation:
Let X be the random variable that represents the income (in dollars) of a randomly selected person.
Given :
Sample size : n=350
z-score :
To find the probability that the sample mean would differ from the true mean by less than 22 dollars, the interval will be
For x=15429
For x=15473
The required probability :-
Hence, the required probability is 0.5467.