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Digiron [165]
3 years ago
9

Doctors nationally believe that 74% of a certain type of operation are successful. In a particular hospital, 57 of these operati

ons were observed and 47 of then were successful. At alpha is equal to 0.05, is this hospital's success rate different from the national average
Mathematics
1 answer:
Triss [41]3 years ago
8 0
Thanks for the points
You deserve a real answer
Ask your teacher
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Carmen runs a video to DVD transfer business. She charges her customers $20.40 for each video transferred. Her expenses include
vovangra [49]

Answer:

A. p = $17.95n - $1,250.00

Step-by-step explanation:

Profit (p) = net revenue - expenditure

Net revenue = charge for transfer of n videos - expense for n blank DVD

charge per video transfer = $20.40

charge for n video transfer = $20.40 × n = $20.40n

expense per blank DVD = $2.45

expense for n blank DVD = $2.45 × n = $2.45n

Net revenue = $20.40n - $2.45n = $17.95n

expenditure = $1,250.00

Therefore, p = $17.95n - $1,250.00

6 0
3 years ago
(PLEASE HELP!!)
umka2103 [35]
Congruent because 2 is a larger number then one and 1 is a smalled number then 2
7 0
2 years ago
Each month for 7 months, Eve reads 3 books. How many more books does she need to read before she has read 30 books?
enot [183]
How many books has she read so far? She's been doing this for 7 months, so so far she's read:

7*3=21

how many does she still need to read?

30-21=9

so she needs to read 9 more books. With 3 books a month, this means:

9/3=3

so she needs to read 9 more books, which will take her 3 months!
6 0
3 years ago
Todd is moving sand from his driveway to the backyard. The wheelbarrow weighs 30 kilograns ahen it is full of sand. When it is e
nignag [31]

Answer:

<u>6</u>

Step-by-step explanation:

<u>You divide 30 by five and you get 6 and then you mutiply 6 by 2 and you get 12 kilograms.</u>

<u>So, Todd filled and emptied the wheel barrow 6 times. </u>

<h2><em>Hope this helpes mark brainllest you welcome </em></h2><h2><em>have a great day! </em></h2><h2><em>:) </em></h2>
7 0
3 years ago
Please help! Will give good rating.
Pavel [41]
I think the mean would be the best because the data distribution is neither the mean nor median
4 0
3 years ago
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