3 years ago

Eric wants to collect data about the reading habits of his friends.

Mathematics

1 answer:

MaRussiya [10]3 years ago

5 0

Answer: No, No, Yes, Yes

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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harina [27]

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3,2 and -2

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3 years ago

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Elis [28]

Answer:

Step-by-step explanation:

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3 years ago

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pav-90 [236]

Answer:

The diagonal of the base is 4√5 centimeters.

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Step-by-step explanation:

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3 years ago

We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of

sergiy2304 [10]

Answer:

Margin of error = 0.773

Step-by-step explanation:

We are given the following information in the question.

Sample size, n = 20

Sample mean = 8

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90% Confidence interval

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.729$

Margin of error:

$t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$1.729(\frac{2}{\sqrt{20}} ) = 0.773$

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3 years ago