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UkoKoshka [18]
3 years ago
11

Karen has a summer job as a swim instructor. she gets paid $4 per hour for the first 20 hours and $6 per hour for each hour in t

he week. Karen's goal is to earn $104 per week. how many hours of overtime per week will she need to achieve her goal?
Mathematics
1 answer:
Misha Larkins [42]3 years ago
4 0
She would need to work 24 hours because the first 20hrs x $4 is $80 $104-$80 = 24
24\6= 4 20 plus 4 is 24
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Sample Mean   x `       139.22               114.67

Sample size n                   9                         9

Sample SD                     18.21                  11.937

Rank                               115.5                       55.5

U                                      10.5                          70.5

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<u><em></em></u>

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As the calculated test statistic lies in the critical region H0 is rejected and it is concluded that

<em><u>Worker productivity is higher with automatic dispensers. </u></em>

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