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viktelen [127]
3 years ago
12

a) Spouses are asked about the number of hours of sleep they get each night. Upper A researcher wants to see if husbands get mor

e sleep than wives. Choose the correct answer below. A. This scenario should not be analyzed using paired data because the groups are dependent but do not have a natural pairing. B. This scenario should not be analyzed using paired data because the groups are independent and do not have a natural pairing. C. This scenario should not be analyzed using paired data because the groups have a natural pairing but are independent. D. This scenario should be analyzed using paired data because the groups are dependent and have a natural pairing.
Mathematics
1 answer:
miv72 [106K]3 years ago
6 0

Answer:

D. This scenario should be analysed using paired data because the groups are dependent and have a natural pairing.

Step-by-step explanation:

Paired Data can be defined as data set, when sample units of one data set are related to sample units in other data set.

Research Study about spouses number of hours of sleep each night is paired data. As, each man in the male sample group is related to a corresponding woman (his wife) in the female sample group. So, they have a natural paring & they, their sleep schedules are dependent on each other.

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4.
erica [24]

Answer:

20% decrease

Step-by-step explanation:

First, let's find the net decrease: Peter started at 80kg and his weight is now 64kg, which is a 16kg decrease. Next, we need to find what percentage of 80kg 16kg represents. First, let's find what part of 80 is 16:

16/80 = 1/5

To convert this to a percent, we need to find an equivalent fraction to 1/5 with a denominator of 100. To do this, we can multiply the numerator and denominator of 1/5 by 20, giving us 20/100, or 20%.

4 0
2 years ago
Which of the following shows an equivalent expression to [(5•3)•12 If only the associative property was used to transform the ex
Strike441 [17]

Answer:

[5 . (3 . 12)] shows an equivalent expression to [(5 . 3) . 12] if only the associative property was used to transform the expression ⇒ 1st answer

Step-by-step explanation:

The associative property means you can add or multiply some numbers without matter where you put the parenthesis

Ex: (a + b) + c = a + (b + c) <em>OR</em> (a . b) . c = a . (b . c)

<em>In associative property we move the parenthesis only (we do not move the numbers)</em>

Subtraction or division are not associative

∵ The expression is [(5 . 3) . 12]

- The parenthesis are around the first two numbers, then the

    equivalent expression is the one whose parenthesis are

    around the last two numbers

∴ The equivalent expression is [5 . (3 . 12)]

∴ [(5 . 3) . 12] ≡ [5 . (3 . 12)]

[5 . (3 . 12)] shows an equivalent expression to [(5 . 3) . 12] if only the associative property was used to transform the expression

4 0
3 years ago
Graph: y = 4x + 7. ​
Oksana_A [137]

Answer:

the points are (0,7) and (-1.75, 0)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A coin tossed 5 times. What is the probability of getting
erma4kov [3.2K]

umm....... I think it was exactly 2 head

4 0
2 years ago
What’s the pattern rule?
Verdich [7]

Answer:

Input-previous input then multiply this difference by 3, add the squared difference to the previous output to get the current output

Step-by-step explanation:

The first output is predetermined then the subsequent outputs are obtained by subtracting previous input from previous output then we multiply the difference by 3 and add to the previous output for example

{(7-4)\times 3}+32=9+32=41

{(10-7)\times 3}+41=9+41=50

{(12-10)\times 3}+50= 6+50=56

5 0
3 years ago
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