Answer:
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Step-by-step explanation:
Answer:
z-score = 4.43,
It is a Good day
Step-by-step explanation:
The provided information is:
Mean = $28,286.28
Standard deviation = $1,500
Let x be the sell of department store on Tuesday.
Then, x = $34,924.62
The z-score is define as:
Thus, the Tuesday's z-score is 4.43. So this is usually good day.
Positive and negative doesn’t matter. Steepest slope is the smallest or largest number.
In this case D. -4
The z-score is 3, because 294-210=84; 84/28=3