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bixtya [17]
3 years ago
11

HELP ITS A TIMED QUIZZ PLS HELP

Mathematics
2 answers:
sashaice [31]3 years ago
8 0

Answer:

140.1

Step-by-step explanation:

kondaur [170]3 years ago
7 0

Answer:

140.1 ft

Step-by-step explanation:

The area of the rectangle minus the area of the circle.

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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
HELP ASAP RN PLEASE!!<br><br> 200 people got an email 37 people clicked on it how do you get 18.5%
son4ous [18]

Answer:

37/200

Step-by-step explanation:

Event/Sample Space = .185 = 18.5%

7 0
3 years ago
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An empty luggage case weighs three point five kilograms. Sarah is allowed to carry a total fifteen kilograms on the plane. How m
Nookie1986 [14]
11.5 kilograms
3.5kilo - 15kilo = 11.5kilo she can carry in luggage
7 0
2 years ago
7x10 to the 3rd power, write a pattern to find the value of the expression
myrzilka [38]
Scientific notation is used to express very large or very small values.
Numbers in scientific notation are written in the form of  
m × 10 to the power of n
For example:
500 is written as 5 x 10^2 where:
500 = 5 x 10 x 10

Now, let's consider 7 x 10^3:
Following the same procedure:
7 x 10^3 = 7 x 10 x 10 x 10 = 7000
The pattern can be written as:
7 x 10^3 = 7 x 10 x 10^2 
              = 70 x 10^2
              = 70 x 10 x 10^1
              = 700 x 10
              = 7000
6 0
3 years ago
Write using exponents. (-2) (-2) (-2) (-2) (-2)
andriy [413]
I think the answer is C
7 0
3 years ago
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