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Lera25 [3.4K]
3 years ago
15

Two new devices for testing blood sugar levels have been developed. How do these devices compare? You test blood sugar levels of

20 diabetics with both devices and use the matched pairs t test. the one-sample t test. the two-sample t test.
Mathematics
1 answer:
Ber [7]3 years ago
6 0

Answer:

The matched pairs t test.

Step-by-step explanation:

You test blood sugar levels of 20 diabetics with both devices and use B. the matched pairs t test.

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Simplify: 3•6 - 42 ÷ 2
Romashka [77]

Answer:

-3

Step-by-step explanation:

3 x 6 - 42/2 =

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18 - 21 =

-3

6 0
3 years ago
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HELP ASAP WILL GIVE BRAINLY
melomori [17]

Answer:

(3x - 1)(4x - 3)

Step-by-step explanation:

separating terms it will look like this

(3x - 1)(4x - 3)

when multiple each numbers you will see it will form up as 12x^2 -13x + 3

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A driving exam consists of 29 ​multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probabili
Sholpan [36]

Answer and explanation:

Given : A driving exam consists of 29 ​multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 ​(inclusive) mistakes is 0.53.

Let X be the number of mistake

P(X

P(6\leq X\leq 20)=0.53

To find : The probability of each of the following outcomes.

a) A student makes more than 20 mistakes

i.e. P(X>20)

P(X>20)=1-P(X\leq 20)

P(X>20)=1-(P(X\leq 5)+P(6\leq X\leq 20))

P(X>20)=1-(0.26+0.53)

P(X>20)=1-(0.79)

P(X>20)=0.21

b. A student makes 6 or more mistakes

i.e. P(X\geq 6)=1-P(X

P(X\geq 6)=1-0.26

P(X\geq 6)=0.74

c. A student makes at most 20 mistakes

i.e. P(X\leq 20)=1-P(X>20)

Using 'a' part  P(X>20)=0.21

P(X\leq 20)=1-0.21

P(X\leq 20)=0.79

d. Which two of these three events are​ complementary?

The complement of an event happening is the exact opposite: the probability of it not happening.

According to definition,

Option a and c are complementary events.

6 0
2 years ago
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Y=-5over4x+7 what is the slope pf a line parallel to this line? What is the slope of a line perpendicular?
quester [9]
You question isn't clear, but I assume that you are asking for the slop of a line parallel to y=-(5/4)(x)+7.
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4 0
2 years ago
The mean temperature for the first 7 days in January was 4 °C. The temperature on the 8th day was 3 °C. What is the mean tempera
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Answer:

Mean temperature for the first 8 days was  3.88^\circ

Step-by-step explanation:

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=3.88^\circ

Best Regards!

3 0
2 years ago
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