Answer:
And the best option would be:
0.094 to 0.146
Step-by-step explanation:
For this case we have the following info given:
represent the proportion estimated
represent the standard error
represent the confidence level
The confidence interval for the true proportion is given by:
And for 95% of confidence the critical value is and replacing we got:
And the best option would be:
0.094 to 0.146
The company paid $2000 for the printer
Step-by-step explanation:
Let x be the price of the printer for which the company bought it.
If x is the price of printer, then 25% of x will be the profit made by the company.
That is:
0.25x
According to the statement,
The cost and profit earned by company are equal to 2500
So,
Dividing both sides by 1.25
Hence,
The company paid $2000 for the printer
Keywords: Percentage, Profit
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