3 years ago

The question is "the polynomial is even & positive, does it have 3 or 4 zeros?

Mathematics

2 answers:

Pavel [41]3 years ago

5 0

Answer:

Step-by-step explanation:

sergejj [24]3 years ago

4 0

Even function is symmetrical about the y axis
not sure what it means if the polynomial is positive

the zeroes are how many times it hits the x axis
it hits 4 times so 4 zeros

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Step-by-step explanation:

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3 years ago

A professor thinks that the students in her statistics class this term are less creative than most students at this university.

choli [55]

Answer:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

Step-by-step explanation:

$\mu=35\\n=23\\\=x=33\\s=5\\\alpha=0.1$

1. Null and alternative hypothesis

$H_{0}:\mu=35\\H_{1}:\mu$

2. Significance level

$\alpha=0.1\\1-\alpha=0.99$

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In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if $t$

$-1.918>-2.5083$

Conclusion:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

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3 years ago

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emmainna [20.7K]

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3 years ago

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3 years ago

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Answer:

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3 years ago

Read 2 more answers