3 years ago

(I need these answered fast and with work and explanation)

Mathematics

1 answer:

Alina [70]3 years ago

7 0

Answer:

most I know I don't know and I don't want to know

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Step-by-step explanation:

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3 years ago

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Mars2501 [29]

Answer:

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3 years ago

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You are the owner of a local fast food restaurant and you want to test whether your average number of customers per day is less

katen-ka-za [31]

Answer:

The correct answer is "-1.05".

Step-by-step explanation:

Given that,

Sample size,

n = 25

Sample mean,

$\bar X=480$

Population standard deviation,

$\sigma=95$

Null hypothesis,

$H_0:\mu=500$

Alternate hypothesis,

$H_0:\mu>500$

Then,

The p-value will be:

⇒ $Z=\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$

By putting the values, we get

⇒ $=\frac{480-500}{\frac{95}{\sqrt{25} } }$

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8 0

3 years ago

Okay can you please help me do this

sertanlavr [38]

Answer:

y=3

Step-by-step explanation:

Multiply 9 from both sides to cancel it out.

-27=-y/9

/9 /9

-3=-y

We can't have a negative variable, so we divide -1 from both sides.

-3=-y

/-1 /-1\

3=y

-hope it helps

7 0

2 years ago