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Lera25 [3.4K]
4 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]4 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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The quality manager at Bestiful Company is certifying a new process that must produce 95% (or better) good product before the pr
Nadya [2.5K]

Answer:

The calculated value Z= -0.5822

|z| = |-0.5822|< 2.576 at 0.01 level of significance

Hence null hypothesis is accepted

The quality manager at Restful Company is certifying a new process that must produce 95% (or better) good product

Step-by-step explanation:

<u>Explanation:</u>-

<u>Step:-(i)</u>

The Population proportion is P = 95% =0.95

A sample of 40 containers from the process line are tested, and 93% are found to be good

Sample size ( n) =40

The sample proportion 'p' = 0.93

<u>Level of significance (α )= 0.01.</u>

<u>Null hypothesis:</u>-p = 95%=0.95

<u>Alternative hypothesis:- </u>p≠0.95

The test statistic

                             Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }               (i)

<u>Step:(ii)</u>

substitute all values in (i)

Z = \frac{0.93-0.95}{\sqrt{\frac{0.95X0.05}{40} } }

Z = -0.5822

The calculated value Z= -0.5822

|z| = |-0.5822|< 2.576 at 0.01 level of significance

Hence null hypothesis is accepted

<u>Conclusion</u>:-

The quality manager at Restful Company is certifying a new process that must produce 95% (or better) good product

4 0
3 years ago
Help please pleaseeeee
34kurt

Answer:

1)  3x+4y=8

4y=-3x+8

4y/4=-3x/4+8/4

y=-3/4x+2

slope=-3/4

Y intercept=2

2) 9x+35=-5y

-5y/-5=9x/-5+35/-5

y=-9/5x-7

slope=-9/5

y intercept=-7

3)2y-6=-6x

2y−6+6=−6x+6

2y /2−6x/2+6 /2

y=−3x+3

slope is -3x

y intercept is 3

8 0
3 years ago
Why is a stem and leaf plot called a stem and leaf plot?
rjkz [21]
A stem and leaf plot is called a stem and leaf plot because it is a table where each number in a set gets broken up into stems and leaves.

Stem = the first digit, or digits
Leaf = the last digit 

Ex: The stem of 32 would be 3 and the leaf would be 2. 
     
6 0
4 years ago
In ΔVWX, w = 770 inches, x = 520 inches and ∠V=81°. Find the area of ΔVWX, to the nearest square inch.
never [62]

Answer: 197735

Step-by-step explanation: deltamath

7 0
3 years ago
1/2x+3=2/3x+1<br>what's the answer​
yan [13]
1/3x+2 or x=1.5 depends on if u have to find x itself
3 0
4 years ago
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