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BlackZzzverrR [31]
3 years ago
13

A researcher wished to compare the average amount of time spent in extracurricular activities by high school students in a subur

ban school district with that of high schoolers in a school district of a large city. The researcher obtained an SRS of 60 high school students in a large suburban school district and found the mean time spent in extracurricular activities per week to be x1 = 6 hours, with a standard deviation s1 = 3 hours. The researcher also obtained an independent SRS of 40 high school students in a large city school district and found the mean time spent in extracurricular activities per week to be x2 = 4 hours, with a standard deviation s2 = 2 hours. Let µ1 and µ2 represent the mean amount of time spent in extracurricular activities per week by the populations of all high school students in the suburban and city school districts, respectively. Assume the two-sample t-procedures are safe to use.Suppose the researcher had wished to test the hypothesesH0: µ1 = µ2, Ha: µ1 ? µ2.
The P-value for the test is
A. 0.01.B. 0.05.C. 0.001.D. below 0.000123.
Mathematics
1 answer:
Kisachek [45]3 years ago
3 0

Answer:

A 0.01

Step-by-step explanation:

<em>I saw the answer on the internet.</em>

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Dr. Yancy conducted a correlation study in which she found that the more time children in her study read at home the better they
anzhelika [568]

Answer:

A. Positive

Step-by-step explanation:

They ask us about the relationship between reading and grades.

First you have to go to the first part of the statement that says:

"Dr. Yancy conducted a correlation study in which she found that the more time children in her study read at home the better they performed in school"

In this case they tell us that there is a positive correlation, that the more you read the better your performance in school is.

Performance is your grades, and home study can be reading, so the score is positive in the second half, too.

3 0
3 years ago
What is the solution to the open sentence 18 = c + 6?
sveticcg [70]
This is very simple, all you have to do is subtract 18 and 6 and that would be 12, and now we have 12 as a POSSIBLE answer, lets check our work to be 100% correct so now try to add 12 and 6 and we get 18, so yay it made the equation true and since its true its right so that's the answer.

Answer: c = 12 so 18 = 12 + 6 is true.
4 0
3 years ago
Read 2 more answers
Point X is the incenter of ΔABC.
Gnoma [55]

The measures of GX = 13

The measures of \angle ABX=22^0

EX = 4z + 1  and XF = 2z + 7

Take EX and XF equal time each other and then solve for z and then you will get GX because EX = XF = GX are congruent.

EX = XF

<h3>What is congruent?</h3>

Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

4z + 1 = 2z + 7

2z = 6

z = 3

As,    EX = XF = GX

EX = 4(3) + 1

EX = 13

Therefore, GX = 13      ------      ( EX = XF = GX )

To find the angle ABX, divide the angle ABC by 2 you will get

\angle ABX=22^0

For more information, refer to the link given below

brainly.com/question/16548605

#SPJ1

4 0
1 year ago
 Plz help! The table shows the overnight low temperatures for a four-day period. The low temperature on Wednesday was between th
daser333 [38]

We have been given a table of overnight low temperature for a four-day period. We are supposed to give a possible temperature for Wednesday.

We are told that the low temperature on Wednesday was between the second and third highest temperature.  

Let us place our given temperatures from least to greatest order.

Sunday (-11), Thursday (-8), Friday (7), Sunday (18)

We can see that second and third highest temperatures are -8 and 7 respectively.  

Any number between -8 and 7 will be a possible temperature for Wednesday. 3 can be a possible temperature for Wednesday as 3 is between -8 and 7.

7 0
3 years ago
Solve and graph the inequality on a number line: −19 &gt; g − 24
Phantasy [73]

Answer:

5 >g

Open circle at 5 line going to the left

Step-by-step explanation:

−19 > g − 24

Add 24 to each side

−19+24 > g − 24+24

5 >g

Open circle at 5 line going to the left

5 0
3 years ago
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