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Svet_ta [14]
3 years ago
14

What is the justification for step 1

Mathematics
1 answer:
solniwko [45]3 years ago
6 0

Answer:

what are you talking about??????

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Test the claim that the mean GPA of night students is larger than 3.1 at the .10 significance level. The null and alternative hy
Alborosie

Answer:

H 0 : μ = 3.1    H 1 : μ > 3.1

And this test is defined a a right tailed test since the symbol for the alternative hypothesis H1 is >.

t = \frac{3.13-3.1}{\frac{0.03}{\sqrt{75}}}= 8.66

df = n-1=75-1 =74

The p value is:

p_v = P(t_{74} >8.66) =3.65x10^{-13}

The significance level is: 0.1 or 10%

And since the p value is very low compared to the significance level we have enough evidence to:

Reject the null hypothesis

Step-by-step explanation:

For this case we want to test the claim that mean GPA of night students is larger than 3.1 at the .10 significance level. The claim needs to be on the alternative hypothesis so then we have the following system of hypothesis:

H 0 : μ = 3.1    H 1 : μ > 3.1

And this test is defined a a right tailed test since the symbol for the alternative hypothesis H1 is >.

We have the following info given:

\bar X = 3.13 , s =0.03 , n =75

The statistic to check the hypothesis is given by:

t = \frac{\bar X -\mu}{\frac{s}{\sqrt{n}}}

Replacing the info given we got:

t = \frac{3.13-3.1}{\frac{0.03}{\sqrt{75}}}= 8.66

The degrees of freedom are given by:

df = n-1=75-1 =74

The p value since is a right tailed ted is given by:

p_v = P(t_{74} >8.66) =3.65x10^{-13}

The significance level is 0.1 or 10%

And since the p value is very low compared to the significance level we have enough evidence to:

Reject the null hypothesis

6 0
3 years ago
What is the ratio of 36 to 20 in simplest form?
ollegr [7]
36:20            18:10
--------    =     --------      = 9:5
    2                  2

6 0
3 years ago
Read 2 more answers
There is only one correct answer, regarding both questions.
Georgia [21]
The answer to number one is C
and the answer to number two is A
6 0
3 years ago
What is the sign of a.
posledela

As a = 0 , there is no sign . Its only 0. Thus the answer is (c)

6 0
3 years ago
Help please ?
grandymaker [24]

Answer:

i think it may be "A" but i may be wrong sorry if im wrong

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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