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Zarrin [17]
3 years ago
9

A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 678 babies were​ born, a

nd 339 of them were girls. Use the sample data to construct a ​99% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?
Mathematics
1 answer:
suter [353]3 years ago
7 0

Answer:

We are 99% confident that the true proportion of female babies is captured by the interval from

0.8001

to

0.8999

.

Step-by-step explanation:

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Hunter-Best [27]

Answer:

Step-by-step explanation:

for missing angle of triangle ABC

let the missing angle be y

31+111+x=180(sum of interior angle of a triangle is 180 degree)

142+y=180

y=180-142

y=38 degree

x=y(being alternate angles)

x=38 degree

8 0
3 years ago
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1/6
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Answer:

D). 5x^7y^2+7x^6y^5-14x^3y^7+51x^2y^9

Step-by-step explanation:

For better clarity let us re write the options

A).2xy^3+3x^3y^4-4x^4y^5+9x^5y^6

B).8x^5-5y^4-2xy^5+x^2y

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To express polynomial with mixed variables in standard form, we begin by the highest coefficient of x to the smallest (we place high precedence on the coefficient  x terms)

5 0
3 years ago
three friends go to the movies and split the total cost between them. the total cost is $13.05 for movie tickets and $10.26 for
lakkis [162]
Total cost = $13.05 + 10.26
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6 0
3 years ago
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17=s+7<br> pls help i need thissssssssssssss
dimaraw [331]

Answer:

17=s+7

-7    -7

-----------

10    0

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Step-by-step explanation:

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-Once you check to make sure 10 + 7 = 17 you have your answer

Hope this helps :))

5 0
3 years ago
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