3 years ago

Find the next number in the sequence: "-1, 1, 4, 8, 13, ..."

Mathematics

2 answers:

Afina-wow [57]3 years ago

8 0

Answer:

Step-by-step explanation:

Oduvanchick [21]3 years ago

5 0

Answer:

Step-by-step explanation:

because the more you go up the amount increases

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A sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's p

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Answer:

So the value of the test statistic is -0.85.

Step-by-step explanation:

We know that a sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 54% of the chips do not fail in the first 1000 hours of their use.

We get that:

$n=1800\\\\p_1=53\%=0.53\\\\p_2=54\%=0.54\\$

We calculate the standar deviation:

$\sigma=\sqrt{\frac{0.53 \cdot (1-0.53)}{n}}=\sqrt{\frac{0.53 \cdot 0.47}{1800}}=0.01176$

We calculate the value of the test statistic:

$z=\frac{p_1-p_2}{\sigma}=\frac{0.53-0.54}{0.01176}=-0.85$

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Anuta_ua [19.1K]

Answer:

1/14

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