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3 years ago

Plz help I will give brainliest whoever answers first correctly

Mathematics

1 answer:

Lostsunrise [7]3 years ago

6 0

Answer:

I like your profile pic

Step-by-step explanation:

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Sampling error can be avoided only when the sample contains the entire population. True OR False

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Is there a way to have both true and false?

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3 years ago

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Which expression is equivalent to 4(6 -2x)

Over [174]

The correct answer is A: 24-8x. To solve this all you need to do it distribute the 4 to the 6 and -2x. Once you do that you get your answer of 24-8x. Hope this helped!

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Birthdays of hockey players: In Malcolm Gladwell’s book "Outliers" he shares the work of Canadian psychologist Roger Barnsley, w

alexgriva [62]

Answer:

The P-value is 0.009.

Step-by-step explanation:

We are given that after debating whether this set of hockey players can be viewed as a random sample of hockey players, they decide to run a hypothesis test anyway to practice finding the P‐value.

We are given that the following hypothesis below;

Null Hypothesis, $H_0$ : p = 0.25

Alternate Hypothesis, $H_A$ : p > 0.25

Now, the test statistics that was used here for the above hypothesis would be;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

Also, the test statistics given to us is 2.37.

SO, the P-value of the test statistics is given by the following formula;

P-value = P(Z > 2.37) = 1 - P(Z $\leq$ 2.37)

= 1 - 0.99111 = 0.00889 ≈ 0.009

The above probability is calculated by looking at the value of x = 2.37 in the z table which has an area of 0.99111.

Therefore, the required P-value is 0.009.

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3 years ago

Mary spent $8 of the $40 that she had. What is this as a fraction?

irakobra [83]

Answer:

8/40 is the correct answer

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4 years ago

Alan is paying a dinner check but he was not sure how much he should tip for his bill of $27 and thirty-eight. if a standard tip

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So you need to find 15% of $27.38. To do this you can multiply 27.38 * .15 and get 4.107. Round to $4.11 and this is the tip. The total bill would be $31.49

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3 years ago

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