A new reading program may reduce the number of elementary school students who read below grade level. The company that developed this program supplied materials and teacher training for a large-scale test involving nearly 8500 children in several different school districts. Statistical analysis of the results showed that the percentage of students who did not meet the grade-level goal was reduced from 15.9% to 15.1%. The hypothesis that the new reading program produced no improvement was rejected with a P-value of 0.023.
a) Explain what the P-value means in this context.
b) Even though this reading method has been shown to be significantly better, why might you not recommend that your local school adopt it?

Answers

Answer 1

Answer:

The solution to the given points can be defined as follows:

Step-by-step explanation:

In point a:

There is still a 2.3% chance which 15.1% of learners who also don't achieve a level by naturally-excluding specimens only will see if 15.9% is the population means value.

In point b:

Throughout the old system, 1352 learners must not read in classes, but 1284 should not write throughout academic performance throughout the new curriculum. A reduction, as well as the significance of such a decrease, would depend mostly on the cost of switching to the new initiative.

Answer 2

a. The explanation of the p-value should be explained below.

b. The suggestion that should not be considered is also explained below.

P-value and the suggestion not considered:

a. Since there is a still 2.3% chance that 15.1% of learners should not accomplish the level via naturally-excluding specimens only would watch in the case when 15.9% should represent the mean value of the population.

b. If we considered the old system, so 1352 learners should not read the class however, 1284 should not write the academic performance. So there is the reduction that based on the switching cost

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Related Questions

A candle burns at a constant rate once it is lit. The height of the candle is 250

millimeters 5 minutes after it was lit. After the candle burned for 25 minutes the

height was 230 millimeters.

What is the change in the height of the candle per minute?


A.The length of the candle decrease 1 millimeter per minute.


B.The height of the candle decreases 4 millimeters per minute.


C.The height of the candle decreases 10 millimeters per minute.


D.The height of candle decreases 20 millimeters per minute.

Answers

It burned down 20mm in 20 minutes. So the height so the change in height of the candle per minute in -1 mm

SYSTEM OF EQUATIONS

The sum of three times Sophia's age and twice Nick's age is 73. Twice Sophia's age plus four times Nick's age is 86. How old is Sophia?

Answers

3s+2n=73
2s+4n=86


Multiply top equation by 2 and then subtract second equation

4s=60
Sophia is 15
Nick is 14

Point S is between points R and T. Given that
RS ST and RS = 16, what is RT?

Answers

Answer:

32

Step-by-step explanation:

Reason: point S is between points are and t

Meaning that Line RS≅ST

So if RS=16 then ST=16

To find RT we just add ST and RS

16+16=32

Therefore RT=32

hope this helps :)

Use the given area of the base and the height to find the volume of the right rectangular prism, in cubic units.

Answers

You dident give us a picture of it so we cant tell

Cant tell because there is no picture

Nick is splitting 4 quarts of ice cream with 9 members of the team. If the ice cream is split​ evenly, how many will each person​ get? Explain.

Answers

Answer:

Each member will get 3 and 1/2 cups or 3.5 cups of ice cream.

Mean = 25


Standard Deviation = 3.8


P(X

Find the value of k.


Round to 2 decimal values.

Answers

Answer:

The normal distribution is explained for the solution of this question.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Mean = 25, Standard Deviation = 3.8

This means that [tex]\mu = 25, \sigma = 3.8[/tex]

So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{X - 25}{3.8}[/tex]

If P(X > k) = a

We have to find [tex]X = k[/tex] when Z has a pvalue of 1 - a.

If P(X < k) = a

We have to find [tex]X = k[/tex] when Z has a pvalue of a.

HELPP! I"LL GIVE THE FIRST RIGHT ANSWER BRAINLIEST!!!

Answers

Answer:

61

Step-by-step explanation:

Heights of Smith's Adult grandchildren median: 339

Heights of Thompsons' Adult Grandchildren median: 400

400 - 339 = 61

Helpppppppppppppppp

Answers

2x-54=x

2x=x+54

x=54

so the answer is 54°

Which equation is equivalent to 2-2(3x - 1)=2

Answers

Answer:

it should be C

Step-by-step explanation:

I hope this helps! I am sorry if I am wrong!

Answer:

c

Step-by-step explanation:

2-2(3x-1)=2 2-6x+2=2 . 2-6x+2=2 4-6x=2 . -6x+4=2 . -6x+4-4=2-4 -6x=-2  -6x=-2 -6x/-6=-2/-6 x=1/3 .

Can someone help me please

Answers

Answer:

the second one. (3,-4)(6,-4)

Step-by-step explanation:

Answer:

the answer is B

Step-by-step explanation:

because if you draw the points on a coordinate grid, you will see that there's 3 units between them

Using the diagram below, identify the relationship of the pair of angles and find the value of x.

Answers

Answer:

The angles are supplementary to each other (their sum is 180 degrees)

x = 62°

Step-by-step explanation:

(2x+10) + 46 = 180

subtract 56 from each side

2x = 124

divide both sides by 2

x = 62°

A mathematician simplifies the expression mentally.
17.2 (20+45) - (4.75)
What is the best estimate of the value of the expression?
0 381
O 1,114
O 1,844
O 5,521

Answers

Answer:

1,114

Step-by-step explanation:

17.2(65)- (4.75)

1118 - 4.75

1113.25

Answer:

Step-by-step explanation:

1114

Determine if the equation y = 15(1.35)* represents exponential growth or decay and justify. Hint: Think about the growth and decay equations.​

Answers

Answer:sdfghgfdfghnhgfdfgh

Step-by-step explanatsdfghjhgfghjk

Answer: Exponential growth

====================================================

Explanation:

The equation is in the form y = a*(b)^x

The 'a' is the initial or starting value. In this case, a = 15.

The b is the base of the exponent which is tied to growth or decay. If 0 < b < 1, then we have decay. If b > 1, then we have growth.

Since b = 1.35, and 1.35 > 1, this means b > 1 and the given equation represents exponential growth.

Solving 1+r = 1.35 leads to r = 0.35. This means the growth rate is 35%

Celesta and Sam found that 14 marbles would fill each pouch. There were 12 pouches. How many marbles
did they need to fill all the pouches?

Answers

168 marbles because you do 14 x 12 you get 168 marbles

Please help due soon.

Answers

Answer:

The answer is -41 :)

Step-by-step explanation:

THis is the answer because if -5 is the midpoint, then y= (-5)-31 which equals -41.

Hope I helped!

A local ice cream shop sells root beer floats for $2.75 and milkshakes for $6. One day the shop sold 10 more root beer floats than milkshakes and made $290. How many root beer floats were sold on this day? How many milkshakes?

Answers

Answer:

30 milkshakes and 40 root beer floats

Step-by-step explanation:

Set up a system of equation (r is root beer and m is milkshake)

2.75r+6m=290

m+10=r

Substitute

2.75(m+10)+6m=290

2.75m+27.5+6m=290

8.75m=262.5

m=30

Now plug in 30 and solve for r

30+10=40

The total of 24 and a number x as an algebraic phrase

Answers

Answer:

24+x

Step-by-step explanation:

We need to find the expression for the following phrase i.e. the total of 24 and a number x.

Total means we need to add two numbers.

i.e.

Expression = 24+x

Hence, this is the required solution.

What is the value of k in the following equation?
2(4k + 5) + 3(3 – 3k) = 25

Answers

Answer:

K = - 6

Step-by-step explanation:

Let's solve your equation step-by-step.

2(4k+5)+3(3−3k)=25

Step 1: Simplify both sides of the equation.

2(4k+5)+3(3−3k)=25

(2)(4k)+(2)(5)+(3)(3)+(3)(−3k)=25(Distribute)

8k+10+9+−9k=25

(8k+−9k)+(10+9)=25(Combine Like Terms)

−k+19=25

−k+19=25

Step 2: Subtract 19 from both sides.

−k+19−19=25−19

−k=6

Step 3: Divide both sides by -1.

plss help mehhhhhhhhhhh pls

Answers

Answer:

Infinitely many solutions.

Step-by-step explanation:

Any value of X makes the statement true, meaning the solution is all real numbers.

Simplify: -6(x + 5) show work plz

Answers

Answer:

The answer is -6x - 30

Step-by-step explanation:

1) Expand by distributing terms.

[tex] - 6x - 6 \times 5[/tex]

2) Simplify 6 × 5 to 30.

[tex] - 6x - 30[/tex]

Thus, the answer is -6x - 30.

Answer:

-6x - 30

Step-by-step explanation:

Multiply using the distributive property.

-6x - 30

Hope this helps

Which of the following equations has no solution?
3x + 1 = 2x + 1
3x + 1 = 3x + 1
3x + 1 = 3x + 2

Answers

Answer:

the last one

..

Manuel and Peter are standing 12 ft. apart from each other and looking up at a kite that is flying between them. Manuel is flying the kite on a 65 ft. string at an angle of 70(degrees) with the ground. How far is Peter from the kite?

A. 61.9 ft.
B. 65.8 ft.
C. 68.1 ft.
D. 99.5 ft.

Answers

Answer:

C. 68.1 ft.

Step-by-step explanation:

Hope this helps

Answer:

Trigonometric Identities and Applications Test Part 1

1. a,c,e

2. B sinx

3.b,d

4. D sec thea

5. b,c

6. A. 0.67

7. A sqrt 6- sqrt2/4

8. A cos^2 47=....

9. B 2+sqrt3/4

10. c,e

11. C .63

12. A 8.9

13 D 8.0

14 D 86.2

15 61.9 ft

16 writen

17. a,d

18. b,c

19 a,d

20 writen

Step-by-step explanation:

took part one and I missed some but it's to help others in need :)

at the market Miss Winn bought 3/4 IB of grapes and 5/8 idea of cherries how many ounces of grapes did Miss win by​

Answers

Answer:

12 oz of grapes

Step-by-step explanation:

1 lb = 16 oz so 16*3/4 = 12

Solve using elimination -3x-4y=-1 and 3x-y=-4 *

(1,1)
(-1,1)
(1,-1)
(-1,-1)

Answers

Using elimination (-1,1)
(-1.1) i’m pretty sure try and see :)) wish you luck

Help I forgot how to do this​

Answers

Answer:

number 5 is 11 and number 6 is 16

Step-by-step explanation:

you substitute a for 4 bc a equals 4 and than finish the equation 4+7=11

6. you substitute b for 2 and c for 8 and multiply which than is 16

what is the measure of angle 8?​

Answers

9514 1404 393

Answer:

  135°

Step-by-step explanation:

Angle 8 and the one marked 45° are a linear pair, so are supplementary.

  angle 8 = 180° -45°

  angle 8 = 135°

Tai has 1/2 gallon of milk left in his
refrigerator. He pours the milk into
glasses that can each hold a 5/64 gallon.
How many glasses can Tai fill
completely with milk?

Answers

Answer:

He can completely fill six glasses, and there will be one glass 2/5 of the way full.

Step-by-step explanation:

Write two ways
you could use to find 5 + 8.

Answers

5 + 8 = 13 or
8 + 5 = 13

Two adjacent angles form a right angle. The larger angle is 3 times the measure of the smaller angle. Which is the measure of the larger angle?

This means the angles are in a ratio of 1:3.

A. 67.5°
B. 30°
C. 22.5°
D. 45°

Answers

The angles is B: 30 degrees

Answer:

B. 30

Step-by-step explanation:

Connor can travel 2 3/4 miles in 2 1/2 hours. What is his average speed in miles per hour?

Answers

Answer:

C 1.1 mph

Step-by-step explanation:

Divide 2 3/4 by 2 1/2 to get 1.1

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