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1 year ago

If v•w=0, then the two vectors v and w are

Mathematics

1 answer:

Brrunno [24]1 year ago

8 0

When the scalar product between two vectors is equal to zero, we can say that they form an angle of 90 degrees.

This means that if v•w=0, then the two vectors v and w are orthogonal.

The correct answer is orthogonal.

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A researcher took a random sample of 100 students from a large university. She computed a 95% confidence interval to estimate th

katen-ka-za [31]

Answer:

Part (A): The correct option is true.

Part (B): The null and alternative hypothesis should be:

$H_o: \mu =0 ; H_a:\mu \neq0$

Step-by-step explanation:

Consider the provided information.

Part (A)

A random sample of 100 students from a large university.

Increasing the sample size decreases the confidence intervals, as it increases the standard error.

If the researcher increase the sample size to 150 which is greater than 100 that will decrease the confidence intervals or the researcher could produce a narrower confidence interval.

Hence, the correct option is true.

Part (B)

The researcher wants to identify that whether there is any significant difference between the measurement of the blood pressure.

Therefore, the null and alternative hypothesis should be:

$H_o: \mu =0 ; H_a:\mu \neq0$

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Answer:

$\frac{1}{3}$

Step-by-step explanation:

$\frac{2}{6}$ simplified is $\frac{1}{3}$

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