2 years ago

Help me I'm kinda stuck xD

1 answer:

7 0

The answer would be C or the third option.
Hope This Helps!

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Evgesh-ka [11]

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3 to five or 5 to 3

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olchik [2.2K]

Answer:

Step-by-step explanation: calculator

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zysi [14]

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Sonja [21]

Answer:

slope: 2/5

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2 years ago

vichka [17]

Answer:

(25.732,30.868)

Step-by-step explanation:

Given that in a random sample of 42 people, the mean body mass index (BMI) was 28.3 and the standard deviation was 6.09.

Since only sample std deviation is known we can use only t distribution

Std error = $\frac{s}{\sqrt{n} } =\frac{6.09}{\sqrt{42} } \\=0.9397$

$df = 42-1 =41$

t critical for 99% two tailed $= 2.733$

Margin of error $= 2.733*0.9397=2.568$

Confidence interval lower bound = $28.3-2.568=25.732$

Upper bound = $28.3+2.568=30.868$

3 0

2 years ago