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irina1246 [14]
3 years ago
15

Nick is taking his written drivers test. As he answers each question, the progress bar at the bottom of the screen shows how man

y questions he has completed. He just completed question 16, and the progress bar shows he is 20% complete. How many total questions are there
Mathematics
1 answer:
Readme [11.4K]3 years ago
8 0
Not sure what your saying
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A researcher obtains t = 2.35 for a repeated-measures study using a sample of n = 8 participants. Based on this t value, what is
ZanzabumX [31]

Answer:

p_v =2*P(t_{7}>2.35)=2*0.0255=0.051  

If we compare the p value and using the significance level given \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% or 1% of significance we fail to reject the null hypothesis.

Step-by-step explanation:

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level is not provided but we can assume it as \alpha=0.05. First we need to calculate the degrees of freedom like this:

df=n-1=8-1=7

The next step would be calculate the p value for this test.  Since is a bilateral test or two tailed test, the p value would be:  

p_v =2*P(t_{7}>2.35)=2*0.0255=0.051  

If we compare the p value and using the significance level given \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% or 1% of significance we fail to reject the null hypothesis.  

5 0
3 years ago
Diagram shows a cone and its axis of rotation which type of cross-section is formed when the cone is intersected by a plane cont
MAXImum [283]

Answer:

The cross section will be an isosceles triangle

Step-by-step explanation:

The picture of the question in the attached figure N 1

we know that

If a plane passes through the axis of rotation of the cone, then the resultant cross-section will be a triangle with one vertex as the vertex of the cone and the two sides of the triangle through the vertex A will be equal.

Where the base of the triangle will be equal to the diameter of the circular base of cone and the two congruent sides of triangle will be equal to the slant height of the cone

therefore

The cross section will be an isosceles triangle

3 0
3 years ago
How to model 4÷2/3??
stealth61 [152]

Answer:

We have 4 x ( 3 / 2 ) = 12 / 2 = 6;

Step-by-step explanation:

4 0
3 years ago
Question: what is the graph of y= -x+2
Bezzdna [24]

Answer:

[A]

Step-by-step explanation:

3 0
2 years ago
What is the equation of the line that passes through the point (-4,-2) and has a<br> slope of -1/2?
Soloha48 [4]

Answer:

y =  -  \frac{1}{2} x

8 0
3 years ago
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