2 years ago

I don't know how to do this.

Mathematics

1 answer:

mel-nik [20]2 years ago

8 0

Answer:

I need help on this to it's confusing

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The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det

Maru [420]

Answer:

0.077994

Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

$H_0: Mean = 30\\H_a: Mean >30$

(Right tailed test)

Sample size = $n=250$

Sample mean = 30.45

Mean difference = $30.45-30=0.45\\$

Sample std dev s = 5

Sample std error = $\frac{5}{\sqrt{n} } =\frac{5}{\sqrt{250} } \\=0.3163$

Test statistic = Mean diff/std error = $=\frac{0.45}{0.3163} =1.423$

Since population std deviation is not know we use t test

p value = $0.077994$

4 0

3 years ago

**WILL GIVE BRAINLIEST**<br><br> PLZ HELP ASAP!!

Eduardwww [97]

Length: 2w-12
Area is length times width so (2w-12)*w
Or 2w^w-12w

6 0

2 years ago

How do I simplify 5 3/2

Volgvan

Note the improper fraction. Change it into a mixed fraction

3/2 = 2/2 + 1/2

2/2 = 1

5 + 1 1/2

Simplify.

5 + 1 = 6

6 1/2 is your answer

hope this helps

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2 years ago

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The number of home runs scored by teams in the Brooksfield baseball league are

juin [17]

Step-by-step explanation:

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3 0

2 years ago

Here are graphs of two functions f and g the function h is defined by h(x)=f(x)-g(x)

bearhunter [10]

i did this last year lol ;-;

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2 years ago

I don't know how to do this.​

I don't know how to do this.