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avanturin [10]
3 years ago
13

Assume you have a sample of n1=8, with a sample mean X1= 42 and a sample standard deviation, S1 = 4 and an independent sample of

n2=15 from another population with a sample mean of X2=34 and a sample standard deviation of S2 = 34. The pooled variance, Sp 2 = 776.
a. What is the value of the tSTAT for testing H0 : µ1 = µ2?
b. In finding the critical value, how many degrees of freedom are there?
c. What is your statistical decision?
Mathematics
1 answer:
patriot [66]3 years ago
5 0

Answer:

Step-by-step explanation:

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I also need work for understanding on these questions (I will mark as brainliest)
stich3 [128]

Answer:

<em>24000 and 1620 for the first and fifth </em>

Step-by-step explanation:

  • <em>24 x 25 x 40 = 24000</em>
  • <em>9 x 6 x 30 = 1620</em>

<em></em>

<em></em>

<em></em>

  • <em>I only know one and five </em>
  • <em>i couldn't figure out the others</em>
  • <em>Hope this helps</em>
  • <em>The other three i didn't learn yet</em>
  • <em>Brainliest</em>
  • <em>Ask questions if wrong</em>

7 0
3 years ago
The amount Cami raised during last year’s charity walk, $45.50, is StartFraction 7 over 10 EndFraction of the amount she raised
barxatty [35]

Answer:

The equation is given by:

n = \frac{7}{10} \times 45.50

Step-by-step explanation:

During last years's charity walk, she raised $45.50.

During this years walk, she raised n, which is 7/10 of this amount. So, the equation is given by:

n = \frac{7}{10} \times 45.50

3 0
3 years ago
This is worth 18 points to whoever gets it right and also if you do get it right first you'll get voted as brainlyess answrr
Bumek [7]
The correct answer is <span>1 and 1/2

Hope I helped</span>
4 0
3 years ago
Read 2 more answers
Determine if the leading coefficient of the following function is positive or negative and whether the function has a minimum or
fenix001 [56]

Answer:

The function has a negative leading coefficient and a maximum vertex point

Explanation:

This function's leading coefficient is determined by whether it is concave up or concave down, meaning it has an Up and Up end behavior for a positive leading coefficient and a Down and Down end behavior for a negative coefficient.

This function's end behavior is Down and Down, so it must have a negative leading coefficient.

The function has a minimum vertex when the function has a positive leading coefficient and a maximum vertex point when the function has a negative leading coefficient.

This means that the functions vertex is the highest or lowest possible value of the function (the rest of the function continues forever in whichever direction.

This particular function has a maximum vertex as there is no point above the vertex here and the function has a negative leading coefficient.

4 0
3 years ago
Read 2 more answers
The perimeter of a rectangular field is 364 yards. if the width of the field is 85 yards, what is its length? yards
suter [353]
4.28 yards?... maybe
3 0
3 years ago
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