SAT : asked on gabbymay85
 02.11.2022

The following data were obtained from an independent measures study .Determine if there is a significant difference between the treatments. a= 01

. 5

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Mathematics
Step-by-step answer
P Answered by Master

(1.4328, 1.622)

Claim is supported by evidence.

Step-by-step explanation:

Given that a  recent study was conducted to determine the curing efficiency (time to harden) of dental composites (resins for the restoration of damaged teeth) using two different types of lights.

Let X be the halogen and y the Luxomax light

H_0: \bar x =\bar y\\H_a: \bar x  \bar Y

(Two tailed test)

we are given data as:

Group   Group One     Group Two  

Mean   5.3500            3.9000

SD             0.7000     0.8000

SEM       0.2214     0.2530

N                10                10      

The mean of Group One minus Group Two equals 1.4500

Std error for difference =  0.336

Test statistic t=4.3135

 df = 18

p value = 0.0004

Since p <0.01 at 1% level, reject H0

There is significant difference and hence the claim is valid.

There  is evidence to support this claim at 1% significance level

Margin of error =1.172

99% confidence interval = (1.45-1.172, 1.45+1.172)\\\\=(1.4328, 1.622)

Mathematics
Step-by-step answer
P Answered by Specialist

(1.4328, 1.622)

Claim is supported by evidence.

Step-by-step explanation:

Given that a  recent study was conducted to determine the curing efficiency (time to harden) of dental composites (resins for the restoration of damaged teeth) using two different types of lights.

Let X be the halogen and y the Luxomax light

H_0: \bar x =\bar y\\H_a: \bar x  \bar Y

(Two tailed test)

we are given data as:

Group   Group One     Group Two  

Mean   5.3500            3.9000

SD             0.7000     0.8000

SEM       0.2214     0.2530

N                10                10      

The mean of Group One minus Group Two equals 1.4500

Std error for difference =  0.336

Test statistic t=4.3135

 df = 18

p value = 0.0004

Since p <0.01 at 1% level, reject H0

There is significant difference and hence the claim is valid.

There  is evidence to support this claim at 1% significance level

Margin of error =1.172

99% confidence interval = (1.45-1.172, 1.45+1.172)\\\\=(1.4328, 1.622)

SAT
Step-by-step answer
P Answered by PhD
The graph tells us that Ralph's performance has gradually been getting worse, Jill's performance has been improving over time, Tina has overall been stable and good in her performance, that Ed's performance has been erratic and that Sam's performance has been inconsistent but improving.
SAT
Step-by-step answer
P Answered by Master

B. use a familiar concept to communicate an idea

Explanation:

Basically, Passage 2 states the hypothesis that spotted green pigeon is a descendant of an island hopping bird and throughot the article, it provides evidence for this statement.

The discovery is that, since the DNA found in a green pigeon's feather was fragmented and they had to analyze only parts of it, the bird had an unique sets of DNA which distinguish it from other members of the pigeon species.

These analyzed parts of DNA are refered to as "mini barcodes".

Since target audience for this article might not be fully familiar with the concept and functions od DNA, researchers used a more familiar concept of barcodes as an analogy to communicate their idea and explain their discovery.

SAT
Step-by-step answer
P Answered by Master

The answer is: teller, loan officer, and tax preparer

Teller act as a front liner on banks who deals directly with the customers. The main job of a teller is to assist the people in making their transaction in the bank.

The main duty of a loan officer is to finds potential clients who need capital injection and assists them in acquiring loans.

Tax prepares help their clients in examining their tax report in other to find out the items that can be used as tax returns.

SAT
Step-by-step answer
P Answered by Specialist
Goals must follow this theory becasue when we have good goals we need to set Achievable goals, Established Important goals for us and Outline those Under your control. Its is a theory that definitely helps to underline goals in a better way
SAT
Step-by-step answer
P Answered by Master

Sucrose is disaccharide composed of glucose linked to galactose is the statement that is not true about carbohydrate structures.

Sucrose is a disaccharide, which means it includes two units of monosaccharide linked together. Each type of disaccharide is composed of different units.

Maltose : Two units of glucoseLactose: One unit of glucose and one of galactose.

In the case of Sucrose, this is composed of one unit of glucose and one unit of fructose. This disaccharide can be found in common sugar, this means the statement "e" is false because sucrose does not have galactose, instead galactose can be found in lactose, which is a different disaccharide.

Learn more in: link

SAT
Step-by-step answer
P Answered by Master

Qualified terms include: sometimes, maybe, may, possibly, some, few Absolute terms include: always, never, only, must Qualified and absolute terms can change the possibility of an answer being correct, by simply including an always, only, or never in the test question.

Explanation:

sample answer

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