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nata0808 [166]
3 years ago
6

Use synthetic division 1. (2x3 - 5x2 + 3x + 7) = (x - 2)

Mathematics
1 answer:
sveticcg [70]3 years ago
6 0

Answer:

Step-by-step explanation: that should help

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Spaulding is the leading maker for basketballs in the US. Spaulding prides itself on the quality that its basketballs have the r
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Answer:

0 < 0.05, which means that we reject the null hypothesis, meaning that the air pressure of the balls is different of the target value of 7.9.

Step-by-step explanation:

The air pressure of a particular ball has a target value of 7.9 PSI.

This means that the null hypothesis is:

H_{0}: \mu = 7.9

The alternate hypothesis is:

H_{a}: \mu \neq 7.9

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

The hypothesis tested means that \mu = 7.9

Suppose the basketballs have a normal distribution with a standard deviation of 0.20 PSI.

This means that \sigma = 0.2

When a shipment of basketballs arrive, the consumer takes a sample of 21 from the shipment and measures their PSI to see if it meets the target value, and finds the mean to be 7.3 PSI.

This means that X = 7.3, n = 21

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{7.3 - 7.9}{\frac{0.2}{\sqrt{21}}}

z = -13.74

pvalue:

We are testing that the mean pressure is different than the target value of 7.9, and since the test statistic is negative, the pvalue is 2 multiplied by the pvalue of z = -13.74, which we find looking at the z-table.

z = -13.74 has a pvalue of 0.

2*0 = 0

0 < 0.05, which means that we reject the null hypothesis, meaning that the air pressure of the balls is different of the target value of 7.9.

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2 years ago
Find a polynomial with real coefficients that has the given zeros. 4 + 4i, 4 - 5i, -1 One such polynomial P (x) can be defined a
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Step-by-step explanation:

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3 years ago
Dennis surveyed 30 students to determine their favorite fall sports. Of the students surveyed, 15 preferred football, 6 preferre
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Are the options to choose from? That is what it seems like.
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There are 7 days in a week. Assuming the same amount is eaten each day, all you have to do is divide 4\frac{3}{4} by 7.
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3 years ago
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A bakery has 18 large trays of bagels and 20 small trays of bagels. Each large tray holds 30 bagels and each small tray holds 15
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Answer:

A the answer is A

Step-by-step explanation:

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