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3 years ago

Please help me because I am an incompetent small brain :0

Mathematics

1 answer:

sdas [7]3 years ago

7 0

I’m pretty sure it is (7, 2)

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Verdich [7]

I don’t see a point so how am I supposed to answer

8 0

3 years ago

Suppose that the hourly wages of fast food workers are normally distributed with an unknown mean and standard deviation. The wag

Nutka1998 [239]

Answer: 1.303639

Step-by-step explanation:

The t-score for a level of confidence $(1-\alpha)$ is given by :_

$t_{(df,\alpha/2)}$ , where df is the degree of freedom and $\alpha$ is the significance level.

Given : Level of significance : $1-\alpha:0.80$

Then , significance level : $\alpha: 1-0.80=0.20$

Sample size : $n=40$

Then , the degree of freedom for t-distribution: $df=n-1=40-1=39$

Using the normal t-distribution table, we have

$t_{(df,\alpha/2)}=t_{39,0.10}=1.303639$

Thus, the t-score should be used to find the 80% confidence interval for the population mean =1.303639

8 0

3 years ago

How do you factor binomials using difference of squares?

Ket [755]

I have solved some examples in the picture

If anything is unclear let me know.

6 0

3 years ago

Can some one help me with this I got the answer but not sure I've the steps?

frez [133]

I belive what you did wrong is that you didint show your work so what you have to do is explain how to do the problem with equations or explain in word form if i were you i would show my work in equations if you need help on how to set it up contact me.

8 0

3 years ago

A cat can jump five times as high as it is tall how high can a cat jump if it were 17.4 cm tall

Burka [1]

Answer:

87.0

Step-by-step explanation:

17.4

17x5=85

.4x5=2.0

85+2.0=87.0

3 0

3 years ago

Read 2 more answers