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Diano4ka-milaya [45]
3 years ago
10

3 What is the product?

Mathematics
1 answer:
mr Goodwill [35]3 years ago
8 0

Answer: I do not know...

Step-by-step explanation:

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Determine the margin of error, m m , of a 90% confidence interval for the mean IQ score of all students with the disorder. Assum
Vsevolod [243]

Answer:

The margin of error is 6.45.

Step-by-step explanation:

The complete question is:

As an early intervention effort, a school psychologist wants to estimate the average score on the Stanford-Binet Intelligence Scale for all students with a specific type of learning disorder using a simple random sample of 36 students with the disorder.

Determine the margin of error, of a 99% confidence interval for the mean IQ score of all students with the disorder. Assume that the standard deviation IQ score among the population of all students with the disorder is the same as the standard deviation of IQ score for the general population, σ = 15 points.

The (1 - <em>α</em>)% confidence interval for population mean <em>μ</em> is:

CI=\bar x\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

The margin of error for this interval is:

MOE= z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

Given:

<em>n</em> = 36

σ = 15

(1 - <em>α</em>)% = 99%

Compute the critical value of <em>z</em> for 99% confidence level as follows:

z_{\alpha/2}=z_{0.01/2}=z_{0.005}=2.58

*Use a <em>z</em>-table.

Compute the value of MOE as follows:

MOE= z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

          =2.58\times\frac{15}{\sqrt{36}}

          =2.58\times 2.5\\=6.45

Thus, the margin of error is 6.45.

5 0
3 years ago
There are 785 students in the senior class if there are 77 more females in the class and males how many males and female seniors
sladkih [1.3K]
862 is the answer because we add
6 0
3 years ago
Read 2 more answers
9\7.80<br> 12\13.80<br> 34.11\9
Mazyrski [523]

Answer:

9/7.80=1.1538

12/13.80=0.8696

34.11/9=3.79

Step-by-step explanation:

8 0
3 years ago
Find the original price before discount if discount is 25% and original price $25​
Lera25 [3.4K]

Answer:

umm im kinda confused but this may be the answer if you clarified.

25 is the answer after the discount but before the discount it would be  31.25 beccause...

Step-by-step explanation:

25 percent of 25= 6.25 so

6.25 plus 25= 31.25

hope this helped!

brainliest

-S

4 0
3 years ago
Which number , when rounded to the nearest hundredth, is equal to 2.39?
sdas [7]
2.385 or another thousandths place decimal
8 0
3 years ago
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