2 years ago

HELP!!! this is due in 5mins...will give brainliest-

Mathematics

2 answers:

Dahasolnce [82]2 years ago

8 0

Answer:

Step-by-step explanation:

No explanation bc due in 5 mins

Blizzard [7]2 years ago

4 0

Answer:

Step-by-step explanation:

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A. -1.6; not significant

Step-by-step explanation:

The z-score of a data set that is normally distributed with a mean of $\bar x$ and a standard deviation of $\sigma$ , is given by:

$z=\frac{x-\bar x}{\sigma}$ .

From the question, the test score is: $x=48.4$ , the mean is $\bar x=66$ , and the standard deviation is $\sigma =11$ .

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Step-by-step explanation:

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