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Mashcka [7]
3 years ago
10

You obtain a dataset from a random sample. • You double-checked your dataset, and there were no typos, and no errors. • All cond

itions were met to develop a confidence interval. • You develop a 97% confidence interval for the population mean µ, and your confidence interval is 74.3 < µ < 78.3. • You double-checked your calculations, and everything was done correctly. Question: Later, you find out that the actual population mean is µ = 71. Why doesn’t your confidence interval contain the actual population mean?
Mathematics
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

Interval is given with 97% confidence. Thus there is 3% probability that interval is not true.

Step-by-step explanation:

In Statistics, estimated intervals are given with some confidence level. In this example person develop the interval with 97% confidence.

<em>Statistically</em>, this means that the person can be 97% sure (not 100%)  that population mean is 74.3 < µ < 78.3. There is still 3% probability that population mean falls outside of the interval.

Small sample size may also lead wrong estimates.

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Answer:

<h2>x = 5</h2>

Step-by-step explanation:

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3 years ago
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10. A box contains five and two-thirds cups of rice. If three fourths of the rice will
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Answer:

5 2/3 - 3/4

5 8/12 - 9/12

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4 0
3 years ago
Sasha ate 3 pieces of bacon for breakfast and ate some pieces for lunch. How many pieces of bacon did she eat today?
Naya [18.7K]
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This is a trick question. Unless we know how much she’s eaten for lunch, we can’t figure out how much she ate.
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2 years ago
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2. You throw a softball straight up into the air at a velocity of 30 feet per second. You release the softball at a height of 5.
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Answer:

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Step-by-step explanation:

We are given that

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Where v_0= Initial velocity

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Substitute the values in the equation then, we get

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Hence, the mathematical model for height of the softball is given by

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3 years ago
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To find that, just do:

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Hope I helped :)
7 0
3 years ago
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