3-83
Let the variable X denote the price per meal in New York City
We assume that the survey is done on large data therefore, X follows normal distribution.
a.
Therefore, the largest proportion of meal prices that could be higher than $60 = 0.13
b. $1USD = 6.46 Chinese yuan
If the checks were paid in Chinese currency
Mean
Standard deviation
$60 Chinese yuan
Therefore, the largest proportion of meal prices that could be higher than 387.6 Chinese yuan = 0.13
Since, the proportion remain unchanged therefore, the change of currency does not affect our answer in part a.
3-83 3 these sample e. Note that one person in the sample played 32 What effect,...
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