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3 years ago

Someone pelase help ASAPPPPPP

Mathematics

2 answers:

Natasha_Volkova [10]3 years ago

8 0

Answer:

the first one

Step-by-step explanation:

Julli [10]3 years ago

3 0

Answer:what is the typical # of holes for the buttons in the jar

Step-by-step explanation: how many buttons? only one number satisfys this

Are there any square buttons? Only one answer satisfys this (yes or no)

What is the typical(average) number of holes for the buttons in the jar? A statistical question will have an average of the whole

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The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

marusya05 [52]

Answer:

The estimation for the proportion of tenth graders reading at or below the eighth grade level is given by:

$\hat p =\frac{955-812}{955}= 0.150$

$0.150 - 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.131$

$0.150 + 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.169$

And the 90% confidence interval would be given (0.131;0.169).

Step-by-step explanation:

We have the following info given:

$n= 955$ represent the sampel size slected

$x = 812$ number of students who read above the eighth grade level

The estimation for the proportion of tenth graders reading at or below the eighth grade level is given by:

$\hat p =\frac{955-812}{955}= 0.150$

The confidence interval for the proportion would be given by this formula

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

For the 90% confidence interval the significance is $\alpha=1-0.9=0.1$ and $\alpha/2=0.05$ , with that value we can find the quantile required for the interval in the normal standard distribution and we got.

$z_{\alpha/2}=1.64$

And replacing into the confidence interval formula we got:

$0.150 - 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.131$

$0.150 + 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.169$

And the 90% confidence interval would be given (0.131;0.169).

8 0

3 years ago

Help with this !!! best answer excepted

Allushta [10]

Its 6 I think hope this helps

6 0

3 years ago

Read 2 more answers

What is the GCF of h4 and h8

Naily [24]

The greatest common factor is to h4 and h8 is 4

7 0

3 years ago

Plz helppp due today

pshichka [43]

Answer

-2.25 -13/5 1 3/5 -2.25

Step-by-step explanation:

3 0

3 years ago

Help pls I need number 4 done pls

anygoal [31]

Answer:

there is an equal amount if cars on both sides so it would be 0

Step-by-step explanation:

there are 4 cars on the left and on the right of 2 1/2 so the answer would be 0 because 4-4=0

4 0

3 years ago