2 years ago

How can you rewrite (z ≤ −1. 75) in order to find the answer?.

1 answer:

4 0

Answer:

The answer is the picture I inserted the way to rewrite it is set-builder notation. Hope this helps :)

Step-by-step explanation:

1- write in set-builder notation

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Dmitrij [34]

Answer: The value of test statistic is 2.442.

Step-by-step explanation:

Since we have given that

n = 238

Sample mean = 23.2 minutes

Standard deviation = 20.26 minutes

Hypothesis :

$H_0:\mu=20\\H_a:\mu\neq 20$

So, the test statistic value would be

$z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{23.2-20}{\dfrac{20.26}{\sqrt{236}}}\\\\z=2.442$

Hence, the value of test statistic is 2.442.

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3 years ago

pshichka [43]

Well all the factors of 32 are 1 and 32, 2 and 16, 4 and 8.

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3 years ago

yan [13]

Step-by-step explanation:

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3 years ago

denpristay [2]

select the one that says "no, the estimate should be higher."

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3 years ago

hram777 [196]

10m + 7n - 14

Steps:
[7m + 3n -(11 - 2m)] + [n + 5 -(-m -3n + 8)]
7m + 3n -11 + 2m + n + 5 + m + 3n - 8
10m + 7n - 14

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3 years ago