A department store, on average, has daily sales of $28 comma 286.28. The standard deviation of sales is $1 comma 500. On Tuesday, the store sold $ 34 comma 924.62 worth of goods. Find Tuesday's z score. Was Tuesday an unusually good day? Round results to the nearest hundredth.

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.

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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