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2 years ago

PLEASE HELP! I WILL GIVE BRAINLIEST ANSWER!

Mathematics

1 answer:

Aleks [24]2 years ago

3 0

Answer:

50 bottles will be needed.....

Step-by-step explanation:

Just calculate the amount of juice the bottle:

6 x pi x 8 x 3/4

Then mulitply that by 0.001 to make it into liters.

Then mulitiply it by 220 so each guest will get it, then round it to the closests half.

And then you can easiely count the number of bottles

But I got 50 so it is probably 55.

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Assume that 200 babies are born to 200 couples treated with the XSORT method of gender selection that is claimed to make girls m

JulsSmile [24]

Answer:

a) test statistic = 2.12

b) p-value = 0.017

c) we reject the Null hypothesis

Step-by-step explanation:

Given data :

N = 200

girls (x) = 115 , Boys = 85

p = x / n = 115 / 200 = 0.575

significance level ( ∝ ) = 0.1

aim : test whether the proportion of girls births after the treatment is greater than 50% that occurs without any treatment .

A) Determine the test statistic

H0 : p = 0.5

Ha : p > 0.5

to determine the test statistic we will apply the z distribution at ( ∝ ) = 0.1

Z - test statistic = ( 0.575 - 0.5) / $\sqrt{0.5*0.5 / 200}$ = 2.12

b) determine the p-value

The P-value can be determined using the normal standard table

P-value = 1 - p(Z< 2.12 ) = 1 - 0.9830 = 0.017

c) Given that the p value ( 0.017 ) < significance level ( 0.1 )

we will reject the H0 because there is evidence showing that proportion of girls birth is > 50%

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