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eithzyd1648
13.03.2020 •
Mathematics
-4(x+9)+-16 PLEASE ANSWER FAST
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Ответ:
-4x-52
Step-by-step explanation:
-4(x+9)+(-16)
-4x-36-16
-4x-52
Ответ:
Follows are the solution to this question:
Step-by-step explanation:
Please find the complete question in the attachment file.
Using formula:
Calculating the value of standard error:
Calculating the value of test statistic:
Formula:
Calculating the value of Degree of freedom:
Because the P-value is a 2-tailed test = 0.0018
Thus they reject H0, because of P-value < 0.05,
Yeah, certain data show clearly that the means are different.