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3 years ago

Which table represents an inverse variation?

Mathematics

2 answers:

Sloan [31]3 years ago

8 0

Maybe D not 100% but i think that’s it

NNADVOKAT [17]3 years ago

3 0

Answer:

Step-by-step explanation:

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A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud

iris [78.8K]

Answer:

$-0.048$

Do not reject $H_0:P_1-P_2=0$

Step-by-step explanation:

From the question we are told that

Sample size $n_1=350$

Sample size $n_2=250$

Sample proportion 1 $\hat P= \frac{25}{350} =>0.07$

Sample proportion 2 $\hat P= \frac{19}{250} =>0.076$

95% confidence interval

Generally for 95% confidence level

Level of significance

$\alpha = 1-0.95=>0.05$

$\alpha /2=\frac{0.05}{2} =>0.025$

Therefore

$Z_a_/_2=1.96$

Generally the equation for confidence interval between $P_1 - P_2$ is mathematically given as

$(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2} }$

$(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250} }$

$(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4 }$

$(-0.006)\pm 0.042$

$(-0.006)- 0.042=>-0.048$

$(-0.006)+ 0.042=>0.036$

Therefore

Confidence interval is

$-0.048$

Conclusion

Given the confidence interval has zero

Therefore do not reject $H_0:P_1-P_2=0$

6 0

3 years ago

So desperate. Last question on my HW and I can't do it.

vladimir2022 [97]

Will you please either write the question or upload a picture of it so we can help you with it?

7 0

3 years ago

Of a number is what percentage of that number?<br>

earnstyle [38]

Answer:

13/10 = 130%

13/10 x 100

= 130%

7 0

3 years ago

June serve 4/9 of the fruit punch . how many litters does she have left?

Zielflug [23.3K]

18- 4/9 = 17 9/9 - 4/9 = 17 5/9 litters

3 0

3 years ago

Jorel's saving account must have at least $600 in it or he is charged a

Harrizon [31]

483.23
716.23 - 225=491.23.
491.23<600
491.23-8=
483.23

3 0

3 years ago