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kumpel [21]
3 years ago
3

Suppose that, for a t test, your computed value for t is +3.28. The critical value of t is +2.048. Explain what this means. Do y

ou reject the null hypothesis or not? Now suppose that you have 28 degrees of freedom and are using a two-tailed (nondirectional) test. Draw a simple figure to illustrate the relationship between the critical and the computed values of t for this result.
Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
7 0
Since the computed t test value is greater than the critical value, this means that there is a significant difference among the variables and that null hypothesis is rejected.
Given that there is 28 degrees of freedom for a two-tailed nondirectional test, the relationship between the critical and computed values of t for this result to two narrow bell curve distribution that overlap.
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The area of a rectangular knitted blanket is 10x squared minus 11x minus 6. What are the possible dimensions of the​ blanket? Us
Dmitrij [34]

Answer:

Dimensions of rectangle are (5x+2)\:and\: (2x-3)\\

Step-by-step explanation:

Area of rectangular knitted blanket = 10x^2-11x-6

We need to find the dimensions of blanket.

If we need to find the dimensions, we need to find the factors of area.

Factoring:  10x^2-11x-6

We will break the middle them -11x

  • Adding 4x-15x we get -11x
  • Multiplying 4x and -15x we get -60x^2 (Product of -6 and 10x^2)

Now, finding factors

10x^2-11x-6\\10x^2+4x-15x-6\\2x(5+2)-3(5x+2)\\(5x+2)(2x-3)\\

So, factors of 10x^2-11x-6\\ are (5x+2)(2x-3)\\

So, dimensions of rectangle are (5x+2)\:and\: (2x-3)\\

6 0
4 years ago
A contracting company rents a generator for 6 hours and a heavy duty saw for 6 hours total cost of $48 for another job the compa
Wewaii [24]

Answer:

the hourly rates are $8 and $10 respectively

Step-by-step explanation:

Given that

The generator rents for 6 hours and the total cost is $48

And, for another job The generator rents for 4 hours and the total cost is $40

We need to find out the hourly rates

For the first one

= $48 ÷ 6 hours

= $8

For the second one

= $40 ÷ 4 hours

= $10

Hence, the hourly rates are $8 and $10 respectively

6 0
3 years ago
"A TV show has 24 episodes. Due to the lack of time, you can only watch 5 of them. However, in order to get a gist of what the s
Juli2301 [7.4K]

Answer:15504

Step-by-step explanation:

We know to select any r no of non-consecutive  element for n consecutive elements is given by

^{n-k+1}C_k i.e. \left ( ^{n-k+1}_k \right )

Here n=24 and r=5

Therefore no of ways=^{24-5+1}C_5

=^{20}C_5

=\frac{20!}{15!5!}

=15504

4 0
4 years ago
bottle of a chemical solution that contains 75% alcohol. The bottle contains 500 milliliters of solution. How many milliliters o
Gnom [1K]
Multiply 500 times .75 and it equals 375, hope this helps!!
5 0
3 years ago
Read 2 more answers
Plz help me with this!
Step2247 [10]
X = 128
180-52=128
The straight line that goes between the 90 degree angle forms a linear pair with one angle being 52 degrees. Since a straight line is a 180 degree angle, you can subtract 52 from 180 to get the 2nd angle which is 128.
7 0
2 years ago
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