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SVEN [57.7K]
3 years ago
14

PLEASE HELP THIS IS MY FINAL

Mathematics
2 answers:
Over [174]3 years ago
7 0

Answer:

Cross products

Aleksandr [31]3 years ago
6 0
Cross products
I think because I would usually call them the extreme and mean but multiplying them is cross product :)
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Match all of the description to the term (Match all of the letters with the numbers).
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3 years ago
(CO 4) In a sample of 8 high school students, they spent an average of 24.8 hours each week doing sports with a sample standard
AveGali [126]

Answer:  

(22.12, 27.48)

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.95=0.05

Sample size : n= 8 , which is a small sample (n<30), so we use t-test.

Critical values using t-distribution: t_{n-1,\alpha/2}=t_{7,0.025}=2.365

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The confidence interval for population means is given by :-

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i.e. 24.8\pm(2.365)\dfrac{3.2}{\sqrt{8}}

24.8\pm2.67569206001\\\\\approx24.8\pm2.68\\\\=(24.8-2.68, 24.8+2.68)=(22.12, 27.48)

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Answer:

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Step-by-step explanation:

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3 years ago
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