Answer: The answer is -1
Explanation: 3+3 = 6 and then following the order of operations you substract 7 giving you the answer -1
The confidence interval did give convincing evidence that there is difference in the population mean number of pairs of shoes for boys and girls at the school.
<h3>Why does the confidence
interval did give convincing evidence?</h3>
The interval is one that gave a good convincing evidence, based on the fact that the number 0 stands as NO difference ( (girls boys) and thus it is = 0 ).
It is also not not included in this interval and as such, it can mean that the difference in the mean number of shoes owned by girls and the mean number of shoes owned by boys is 0 .
Learn more about confidence interval from
brainly.com/question/15712887
Explanation:
A longitudinal wave is composed of compressions and rarefactions. An example of a lomgitudinal wave is sound waves. It's a type of wave thay moves parrelel to axis.
The classification of each of the elements into nonessential element, essential bulk element, or essential trace element are as follows:
Nonessential elements:
Essential bulk elements:
- Carbon,
- Nitrogen,
- Calcium,
- Hydrogen
Essential trace elements:
The complete question
The elements are: Hydrogen, iron, Copper, Nitrogen, Helium, Carbon, Aluminum, Calcium, Argon
<h3>What is Essential and Nonessential Elements?</h3>
Nonessential elements as the name implies are elements which are not necessary for the functional routine of the body and hence are not included in diets.
Essential bulk elements are elements which are needed for the proper functioning of the body and hence are required in relatively large amounts.
Essential trace elements are required in minute quantities in the body.
Learn more about Essential and nonessential elements;brainly.com/question/861262
Well it depends on how big the swimming pools are like one of those big ones or the kid ones also I’m thinking if it’s the little ones that’s it’d be like a 10 years but the big ones omg I have no clue