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Mama L [17]
1 year ago
11

Solve for y. -3 =7 (У - 9/7)

Mathematics
1 answer:
kaheart [24]1 year ago
5 0

Answer:

y = 6/7

Step-by-step explanation:

-3 = 7(y - 9/7)

simply right side

-3 = 7y - 9

then

-3 + 9 = 7y

6 = 7y

y = 6/7

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Step-by-step explanation:

Information given

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\alpha=0.01 represent the significance level

z would represent the statistic

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Alternative hypothesis:p \neq 0.4  

the statistic is given by:

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Replacing the info given we got:

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Since the p value is very low compared to the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true percent of people with type A of blood is significantly different from 0.4 or 40%

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