As a condition of employment, fashion industries applicants must pass a drug test. of the last 220 applicants, 14 failed the test. develop a 99% confidence interval for the proportion of applicants that fail the test. would it be reasonable to conclude that more than 10% of the applicants are now failing the test?

Of the last 220 applicants, 14 failed the test.

So, we have the sample proportion = = 0.064

At 99% confidence interval, z score is 2.576

Standard error or E = and

= and

= 0.0215, 0.1065

Rounding off we get 0.02,0.11

In percentage the applicants who failed lies between interval 2% and 11%.

So, yes it would be reasonable to conclude that more than 10% of the applicants are now failing the test.

step-by-step explanation:

so first find out how much each is worth.

quarter= 25 cents

dime= 10 cents

pennies= 1 cent

then multiply each by how much each is worth.

200                     150                   300

x                         x                     x   1

  25                       10              

                                  300

1000                     1500

+                          

4000                                      

5000                                  

then count 2 from the back and add a period.

$50.00

$15.00

$3.00

and then add them

  $50.00

+

  $15.00

+

    $3.00

$68.00

so sunghee has $68.00

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