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beks73 [17]
1 year ago
5

suppose we are interested in estimating the difference in yawning rates between the control and treatment groups using a confide

nce interval. explain why we cannot construct such an interval using the normal approximation. what might go wrong if we constructed the confidence interval despite this problem?
Mathematics
1 answer:
Karo-lina-s [1.5K]1 year ago
5 0

We cannot construct such an interval using the normal approximation.

<h3>What is null hypothesis?</h3>

Null Hypothesis: The heart transplant procedure did not alter the survival rates of the observed patients. Alternate Hypothesis, Ha: The claim was that the patients getting a heart transplant were more likely to survive than those who did not.

<h3>What is normal distribution?</h3>

Normal distribution is the approximation for large distribution from binomial, poisson distribution etc. Moreover, the variables are discrete and few; and instead of the actual observations we are working on counts data. In the given situation it is preferred to use chi square distribution. As chi square test is used we can check whether the two groups are the same or different. Therefore, it is not possible to construct a confidence interval.

To know more about normal distribution,

brainly.com/question/15103234

#SPJ4

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How to rank linear functions
Maurinko [17]

In linear algebra, the rank of a matrix

A

A is the dimension of the vector space generated (or spanned) by its columns.[1] This corresponds to the maximal number of linearly independent columns of

A

A. This, in turn, is identical to the dimension of the vector space spanned by its rows.[2] Rank is thus a measure of the "nondegenerateness" of the system of linear equations and linear transformation encoded by

A

A. There are multiple equivalent definitions of rank. A matrix's rank is one of its most fundamental characteristics.

The rank is commonly denoted by

rank

⁡

(

A

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{\displaystyle \operatorname {rank} (A)} or

rk

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(

A

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{\displaystyle \operatorname {rk} (A)}; sometimes the parentheses are not written, as in

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4 0
3 years ago
A car drives at 45 km/h for 3 hours.<br> How far does the car travel?
stellarik [79]

Answer:

Hey!

The car travelled 135 kilometers!

Step-by-step explanation:

Here you have to do the speed (45km/h) multiplied by the time (3 hours)

45 x 3 = 135

So the car has travelled 135 kilometers!

HOPE THIS HELPS!!

8 0
3 years ago
Read 2 more answers
Which has the best unit rate grande 16oz $4.25 or venti 20oz $4.55
sergejj [24]
4.25/16=0.265625
4.55/20=0.2275

Answer: Grande 16 oz
3 0
3 years ago
Read 2 more answers
X — 5 &lt; 3 OR x – 5 &gt; 8
Vlad1618 [11]

Answer:

x<8 or x>13

Step-by-step explanation:

x-5 < 3

x < 3 + 5

x <8

OR

x – 5 > 8

x > 8 +5

x >13

combining the two, the combined answer for x is

x<8 or x>13

8 0
3 years ago
Read 2 more answers
If (x – 4) + 6 = 2 - (4 - 2x), then x =<br> A. -4<br> B. -2<br> C. 2<br> D. 4
blondinia [14]

Answer:

x=4

Step-by-step explanation:

Remove the parentheses and turn the 4-2x and make it into 4+2x candle the equal term -4 and should be left with x+6=2+2x then move the variable to the left and change the sign so it would be x-2x=2-6 and collect like terms so it would be -x=2-6 and then calculate that and get -x= -4

(sorry its alot)

6 0
3 years ago
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