3 years ago

Arthur has a balance of $2330 on his credit card, which he plans to pay off by

Mathematics

1 answer:

docker41 [41]3 years ago

5 0

Answer:

$80

Step-by-step explanation:

A P E X

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timama [110]

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g A test was conducted to determine if there is a difference between Canadian and American average heart rates. A group of 36 Ca

melisa1 [442]

Answer:

The test statistic | t | =4.45

Step-by-step explanation:

Step(i):-

Given that the first sample size n₁ = 36

Given that the second sample size n₂ = 34

Mean of the first sample x₁⁻ = 68.5

Mean of the second sample x₂⁻ = 70

Step(ii):-

Test statistic

$t = \frac{x^{-} _{1}-x^{-} _{2} }{\sqrt{S^{2} (\frac{1}{n_{1} }+\frac{1}{n_{2} } } )}$

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The test statistic | t | = |-4.45| =4.45

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3 years ago