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3 years ago

Consider the following scenario describing Mr. Smith's math students: A list pairs math grades with student heights.

Mathematics

2 answers:

KonstantinChe [14]3 years ago

8 0

Answer:

No, Because students who have the same math grade can be different heights

Step-by-step explanation:

C is the answer DO NOT PICK D

You have the put the correct input and output IN ORDER so D is the wrong answer

Evgen [1.6K]3 years ago

8 0

Answer:

Step-by-step explanation: No, why because students that have the same math grade can be different heights and in the equation it is describing math students to heights so therefore it would be math students to heights.

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3 years ago

A student wants to survey the sophomore class of 200 students about whether the school should require uniforms. A

Fittoniya [83]

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Step-by-step explanation:

<u>Given:</u>

Sample size (n) = 50

x = 12

$\widehat{\mathbf{p}}=\frac{\mathbf{x}}{n}=\frac{12}{50}=0.24$

Confidence level = 90%

α = 1 − 0.90 = 0.10

α/2 = 0.05

$\text { Critical value }\left(z_{c}\right)=z_{\frac{\alpha}{2}}=z_{0.05}=1.6449$

(from standard normal table)

90% Confidence interval is,

$\begin{aligned}&\text { Confidence interval }=\widehat{\mathbf{p}} \pm z_{c} \times \sqrt{\frac{\hat{\mathbf{p}}(1-\hat{\mathbf{p}})}{n}} \\&\text { C. I }=0.24 \pm 1.6449 \times \sqrt{\frac{0.24(1-0.24)}{50}} \\&\text { C. I }=0.24 \pm 1.65 \times \sqrt{\frac{0.24(1-0.24)}{50}}\left\end{aligned}$

Therefore, 90% confidence interval for the true proportion of sophomores who favour the adoption of uniforms is C

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2 years ago