2 years ago

What the heck am I doing something something something I’m doing this. So there’s enough writing.

Mathematics

1 answer:

AleksandrR [38]2 years ago

4 0

Answer:

are you okay ? that didnt really make sense sorry love

Step-by-step explanation:

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How much money does the average professional hockey fan spend on food at a single hockey game? That question was posed to 10 ra

Vinil7 [7]

Answer:

Now we have everything in order to replace into formula (1):

$18-2.262\frac{2.75}{\sqrt{10}}=16.03$

$18+2.262\frac{2.75}{\sqrt{10}}=19.97$

Step-by-step explanation:

Information given

$\bar X=18$ represent the sample mean

$\mu$ population mean (variable of interest)

s=2.75 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=10-1=9$

The Confidence is 0.90 or 90%, the significance is $\alpha=0.1$ and $\alpha/2 =0.05$ , and the critical vaue would be $t_{\alpha/2}=2.262$

Now we have everything in order to replace into formula (1):

$18-2.262\frac{2.75}{\sqrt{10}}=16.03$

$18+2.262\frac{2.75}{\sqrt{10}}=19.97$

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3 years ago

I need someone to help me with my math assignments

Nonamiya [84]

Answer:

okay depending on the question

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3 years ago

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Pls, it’s for a test , ;< . I Wanna actually Get a good grade. PLS HELP you will get 20 points

kow [346]

Answer: B. y=9
Explanation: divide both sides of the equation by three
y3/3 = y
27/3=9
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hope this helps:)

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