Please help.. PREALGEBRA

Mathematics

1 answer:

Margarita [4]3 years ago

6 0

The distance between two points is the absolute value of the coordinates:

$d=(R,S) = |R-S|$

We know that $R=-8$ and that the distance is 11, so we have

$|-8-S| = 11$

An absolute value equals 11 if its content equals 11 or -11:

$-8-S = 11 \iff -S = 19 \iff S = -19$

$-8-S = -11 \iff -S = -3 \iff S = 3$

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hello your question lacks the required options attached is a picture of the complete question

One would expect about 5% of tests to be significant just by chance if the null hypothesis is true, and for 60 tests, this is 0.05(60) = 3 tests. This could explain why these tests are statistically significant.

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What is misleading about this is the study's final report because this marketing study was carried out with a level of significance of 5% (0.05) which means that if we carry the same study with varying sample data we will mostly like arrive at a conclusion against our null conclusion 5% of the time and this is not good for the the study because it is a type 1 error and has to be eliminated and it cannot be eliminated totally .

hence One would expect about 5% of tests to be significant just by chance if the null hypothesis is true, and for 60 tests, this is 0.05(60) = 3 tests. This could explain why these tests are statistically significant.