Answers
Related Questions
Help with both plz I’ll mark brainliest
Answers
Answer:
(1,6) is not a solution and I think the second one is: c I think
Step-by-step explanation:
Maria tests the effectiveness of an anti-depression drug by recruiting 500 participants and randomly assigning half e participants to take Drug A for 1 month and the other half to take a placebo for 1 month. At the end of the month, depression levels are recorded. Overall, participants who received Drug A had depression scores of M-32.12, SD- 10.58 and those you received the placebo had depression scores of M- 34.29. SD 11.10, t(498) 2.17,p .01 (one tailed], d19. Faced with these data, Maria needs to write a report in which she interprets the data. Which of the following is the best summary of these data?
A. The p value is very small, showing that there is only a 1% chance of a Type l error. we can be 99% confident that the drug significantly reduces depression.
B. The results of the t-test are significant, but the effect size is small. This study should be replicated with a larger sample size to increase statistical power.
C. The results of the t-test are significant, but the effect size is small. The drug does lower depression, but it is not clear if the reduction is enough to warrant use of the drug.
D. The small p value and the small effect size suggest that the observed difference between the drug adplacebo groups are likely to be due to sampling error. This study should be replicated with a larger sample size.
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Answer:
D. The small p value and the small effect size suggest that the observed difference between the drug placebo groups are likely to be due to sampling error. This study should be replicated with a larger sample size.
Step-by-step explanation:
The p value is determined for any test before making a conclusion. If the p-value is smaller than critical value then we reject the null hypothesis which means that drug is not effective for the reducing depression. A very small p-value usually lesser than 0.05 indicates strong evidence against the null hypothesis.
ABCDE~GHJDF. complete the statements
i figured out a. is angle B but i cant figure out statement 2 pls help!!!!
Answers
Answer:
DC
Step-by-step explanation:
If you consider that we're looking at the same shape at two different scales, then we can simply look at which sides correlate with one another.
In the smaller shape, GH is in the same place as AB in the bigger one.
Similarly, the smaller shape has DJ in the same place that the larger one has DC. This means that dC is the answer to question b.
Miguel is driving his motorboat across a river. The speed of the boat in still water is 13 mi/h. The river flows directly south at 5 mi/h. If Miguel heads directly west, what are the boat’s resultant speed and direction? (Not drawn to scale)
a. 21 mi/h; 13.9 north of west
b. 13.9 mi/h; 21 south of west
c. 13.9 mi/h; 21 north of west
d. 21 mi/h; 13.9 south of west
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Answer: B
Step-by-step explanation:
13.9 mi/h; 21 south of west
-5n = 15
show your work
Answers
Answer:
n=-3
Step-by-step explanation:
divide both sides
-5n/(-5)=15/(-5)
divide both sides
n=15/(-5)
n=-3
Asked has saved $27 in bills to buy a bicycle helmet. Which set of bills represent the $27 Aksel has saved?
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Answer:
A $20
A $5
And 2 ones.
add them up it =27
Step-by-step explanation:
Please help What is a= and b=?
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Example 6854787
The length of a rectangle is 20 meters and the width is 4 meters. What is the perimeter of the rectangle? Do not include units in your answer.
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Answer:
[tex]\boxed {\boxed {\sf 48 \ meters }}[/tex]
Step-by-step explanation:
The perimeter is the sum of the side lengths.
A rectangle has 4 sides: 2 lengths and 2 widths, so the perimeter formula is
[tex]p= 2l+2w[/tex]
The length is 20 meters and the width is 4 meters.
[tex]p= 2(20 \ m )+ 2(4 \ m )[/tex]
Multiply.
[tex]p= 40 \ m + 8 \ m[/tex]
Add.
[tex]p= 48 m[/tex]
The perimeter of the rectangle is 48 meters.
5th grade math. correct answer will be marked brainliest
Answers
Answer: 1 1/4
5/4
Step-by-step explanation:
[tex]\frac{1}{2} + \frac{3}{4}[/tex] (im assuming its 3/4)
make 1/2 into 2/4 so its easier to add
2/4 + 3/4 = 5/4 or 1 1/4
make an equivalent fraction with the denominator 10,100, or 1000
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A line has a slope of 2/3 and passes through the point (6,11)
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Answer:
y=2/3x+7
Step-by-step explanation:
y-y1=m(x-x1)
y-11=2/3(x-6)
y=2/3x-12/3+11
y=2/3x-4+11
y=2/3x+7
A coin is tossed 4 times. Find the probability that a maximum of one head (exactly one head or no head) turns up.
(A) 0.375 (B) 0.25 (C) 0.50 (D) 0.0625 (E) 0.3125
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I would go with answer D
Every flip is a 50/50 so ever 2 would be .25 then multiply that by 2 for 4 flips and it gives you 0.0625
Write an equation of a line that has an x-intercept of -2 and a y-intercept of 6.
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Answer:
y=6x+4.
Step-by-step explanation:
y=mx+b
m=6. b=4.
Which figures below have at least one acute angle? Mark all that appley
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C and D
An acute angle is an angle less than 90 degrees.
Answer
triangle and trapezium
The degree measure of an angle in a right triangle is x, and sin x = 0.354, which of the following expressions is also equal to 0.354?
Answers
Answer:
cos(90° -x), cos(45° -x), cos(x), and cos(x- 45°) that's how mine looks like anyways
Step-by-step explanation:
Kara’s bedroom is in the shape of a rectangle. The perimeter of her room is 50 feet. The width of her room is 12 feet. What is the length of Kara’s room?
A. 13 feet
B. 25 feet
C. 26 feet
D. 38 feet
Answers
Answer:
13 ft
Step-by-step explanation:
To find the perimeter of a rectangle you have to add the four sides of the rectangle, you have two sides and know the perimeter, this will help you find the length of her room. 12 ft is the width, add 12+12 and you have 24. The perimeter is 50 so subtract 24 from 50 and you have 26 that is the length times two, so divide 26 by 2. Now you have 13, so the length of her room is 13 feet.
Hope you understand now! :)
5a+12b+30c ; a=3, b=2, and c=1 evaluate the expression for the given value of the variable.
Answers
Answer:
69
Step-by-step explanation:
5a+12b+30c
5(3)+12(2)+30(1)
15+24+30
39+30
69
Hoped this helps!
what is the slope of the function
Answers
Answer:
-2/2
Step-by-step explanation:
function calculator
2 2/5 - 1 1/3 + 3 1/2=
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Answer:
16.2
Step-by-step explanation:
I think it is the answer. not sure
Dylan bought 3 identical shirts online for a total cost of $71.83 including a flat rate of $7.99 for shipping, Drag numbers to complete an equation to find
the cost of each shirt, s. Each number may be used only once.
3
7.99
71.83
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Answer:
3s+7.99= 71.83 .
Step-by-step explanation:
since there are 3 shirts you would multiply s by 3 so 3s. To me it looks like 7.99 is the constant and 71.83 is the total including this constant. so putting all of these together in y=mx+b format you get the equation 71.83= 3s+7.99
hope this helps
What is the domain and range as an inequality and if you could explain how you got it that would be great
Answers
Answer:
As per the graph, the function starts at point (0, -2) point it self not included.
The graph is extended down and right, so the given point is maximum of the function.
The domain:
x > 0 or x = (0, +∞)The range:
y < -2 or (- ∞, -2)Range
Set of y values
(-oo,-2)As -2 is not included (open dot)
Domain
Set of x values
(0,oo)0 is not included (open dot)
A study was conducted to investigate the effectiveness of a new aspirin-derivative in reducing pain. Results for randomly selected subjects are presented in the Assignment # 8 Excel worksheet. A lower score indicates less pain. The "before" value is matched to an "after" value and the differences are calculated ( on your excel worksheet ) . The differences have a normal distribution. Are the pain-reduction measurements, on average, lower after taking the new aspirin-derivative ? Test at a 1 % significance level.
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Can someone help please
Answers
Answer:right scalene
Step-by-step explanation:
Pls help i really need this
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Answer:
5/7
Step-by-step explanation:
take the basic fact 5 - 3
Answer:
5/7
Step-by-step explanation:
3/7+2/7=5/7
5/7-3/7=2/7
Evan adds 2/1/4 quarts of apple juice to some grape juice to make 5/1/2 quarts of fruit punch. Part A: write an equation to find the amount of grape juice g in the punch. Part B: How much grape juice is in the punch?
Answers
Answer:
3 1/4 qt.
Step-by-step explanation:
5 1/2 - 2 1/4 = 3 1/4
The ratio of the angles of a triangle is 3:7:2. What is the measure of the largest angle?
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Answer:
the largest angle is 150°
Thirty eight years ago George was 14. how old is he now
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Answer:
I believe you need to add 38 and 14 together to get answer of 52 years old.
The ratio of the number of boys to the number of girls in orchestra is 3 to 2. There are 40 girls in the orchestra, how many boys are in the orchestra? (GIVING BRAINLIEST!!)
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Answer:
there are 30 boys in the orchestra
Select the correct answer.
Which function is the inverse of f(x) = -x^3 - 9?
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Answer:
(2)
Step-by-step explanation:
Let f(x) = y → f-¹(x) = f(y) = x, f(y) is the inverse of f(x)
Thus,
=> -x³ - 9 = y
=> - y - 9 = x³
=> (-y - 9)^(1/3) = x
=> f(y) = x
Inverse is (-y-9)^(1/3)
Replacing the variable, inverse is (-x-9)^(1/3)
Option (2)
Compare the fractions using the LCM.
3/5 and 1/4
Answers
Answer:
20
Step-by-step explanation: