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omeli [17]
3 years ago
7

A study was conducted to determine whether big-city and small-town dwellers differed in their helpfulness to strangers. In this

study, the investigators rang the doorbells of strangers living in New York City or small towns in the vicinity. They explained they had misplaced the address of a friend living in the neighborhood and asked to use the phone. The following data show the number of individuals who admitted or did not admit the strangers (the investigators) into their homes:
Helpfulness to Strangers
Admitted strangers into their home Did not admit strangers into their home

Big-city dweller 55 85 140
Small-town dweller 73 41 114
128 126 254

Required:
Do big-city dwellers differ in their helpfulness to strangers? Use α = 0.05 in making your decision.
Mathematics
1 answer:
zaharov [31]3 years ago
5 0

Answer:

Stranger things

Step-by-step explanation:

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A phone plan costs $29.99 per month and includes 200 minutes of calling time. Minutes over 200 are charged at a rate of 25 cents
mylen [45]

Step-by-step explanation:

357-200 is 157 extra minutes (we are only counting the extra minutes)

157*0.25 is 39.25 (this is how much is the extra minutes in total cost)

therefore, add 39.25 and 29.99

29.99+39.25 is 62.24

Therefore, the total bill was $62.24

hope this helps :)

Have a nice day !

5 0
4 years ago
I need help, i have a quiz on it soon.
Nezavi [6.7K]

Answer:

okay

Step-by-step explanation:

complementary angles are angles that add up to 90 degrees

so what you would do is take each number that you have and subtract it from 90

In the first one you would

1. take 90-80

2. you get your answer of 10!

i hope this helps :)

8 0
3 years ago
Am I doing this right someone plz help me with this what’s the answer and the work for this
Gre4nikov [31]

26 feet divided by 15/2 inches  

26 * 12 = 312

312 * 2/15  

624/15

41 9/15

41  3/5


she can make 41 bracelets

4 0
3 years ago
Please i need help i’ll give u a brainliest please
Nina [5.8K]

Answer:

V=314.15

Step-by-step explanation:

V=1/3pi*r^2*h

V=1/3*pi*5^2*12

V=1/3pi*25*12

V=1/3pi*300

V=300/3pi

V=100pi

V=314.15

4 0
3 years ago
If a stadium has 15,000 seats sold at $10.00, $12.50, and $15.00 equally distributed in three sections, how much can be made if
ELEN [110]
If it is equally distrubuted in 3 sections then we would divide 15,000 by 3. Now we take one section which would cost $10.00 and multiply it by the 5,000 since we divided. We would do the same with all three and then add it together.

$10 * 5,000 = $50,000 section one can sell this much
$12.50 * 5,000 = $62,500 section two can sell this much
$15 * 5,000 = $75,000 section three can sell this much

If all the seats are sold than 50k + 62.5k + 75k = $187,500 can be made
3 0
3 years ago
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