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frez [133]
2 years ago
13

For an analysis of variance comparing three treatment means, H0 states that all three population means are the same and H1 state

s that all three population means are different.
A. True
B. False
Mathematics
1 answer:
antoniya [11.8K]2 years ago
7 0

Answer:

False

Step-by-step explanation:

The analysis of variance may be described as an hypothesis test which is used to make comparison between variables of two or more independent groups. The null hypothesis is always of the notion that there is no difference in the means. While the alternative hypothesis is the opposite, for two independent groups, the alternative hypothesis is that both means are different, or not equal or not the same. However. When we have more than 2 independent groups, then the alternative hypothesis is stated as : 'the means are not all equal'. This means that the means of each group does not all have to be different, but the mean of one group may be different from that of the other groups or the mean of two groups are different from the other groups and so on.

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You and your friend collect football cards. You tell your friend that you have 3 times the number of cards he has. Your friend r
fiasKO [112]
Easy I guess ..
I ll try to help ..
Here we go ..
The cards you have is N
The cards he has is n
<span>you have 3 times the number of cards he has
This means N=3n
</span><span> you only have 80 more football cards then he does
This means N=n+80
But we already know that N=3n
So 3n=n+80
which is 2n=80
n=40
So your friend has only 40 cards and you have 3*40= 120 cards

Best luck

Wise</span>
4 0
3 years ago
All the given quadrilaterals in the picture on the right are squares and #1 ≅ #3, #2 ≅ # 4. find the area of the shaded region,
Anika [276]

Answer:

Step-by-step explanation:

If you have a square of side l, its diagonal would be l\sqrt{2}, and its area l^2

If the big square has a area of 900, this implies that its side is \sqrt{900}, so the two diagonal of squares 2 and 4 added together would be \sqrt{900}, therefore one diagonal wold be \frac{\sqrt{900}}{2}. and its side \frac{\sqrt{900}}{2}\frac{1}{\sqrt{2}}. The area (of one square) is (\frac{\sqrt{900}}{2}\frac{1}{\sqrt{2}})^2=\frac{225}{2}

finally the two areas combined (squares 2 and 4) would be 225

6 0
2 years ago
Joni said that she could rewrite the expression d^3•d^11 as d^33. What mistake did Joni make?
Rudik [331]

Answer:

Joni's mistake was to multiply the exponents instead of adding the exponents.

Step-by-step explanation:

we know that

When multiplying two powers that have the same base, you can add the exponents

so

d^{3} *d^{11} =d^{3+11}=d^{14}

Joni's mistake was to multiply the exponents instead of adding the exponents.

7 0
3 years ago
A sweater is 45.50 dollars. It's on sale for 20% off. What is the sale price of the sweater?
arlik [135]
<h3>Answer</h3>

Sale Price = $36.4

Step-by-step explanation:

Sale Price = $36.4 (answer). This means the cost of the item to you is $36.4. You will pay $36.4 for a item with original price of $45.50 when discounted 20%. In this example, if you buy an item at $45.50 with 20% discount, you will pay 45.50 - 9.1 = 36.4 dollars.

3 0
2 years ago
The inverse of the function f(x)=<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%20%2B%203%7D%20%20%2B%202" id="TexFormula1
irina [24]

Answer:

f^-1 (x)=x^2-4x+1

Step-by-step explanation:

y=sqrt(x+3)+2

x=sqrt(y+3)+2

sqrt(y+3)=x-2

y+3=(x-2)^2

y+3=(x-2)(x-2)

y+3=x^2-2x-2x+4

y+3=x^2-4x+4

y=x^2-4x+4-3

y=x^2-4x+1

3 0
3 years ago
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