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denis-greek [22]
3 years ago
11

What is the ordered pair ?

Mathematics
1 answer:
stepan [7]3 years ago
4 0
It either second or last one :) hope this info get u to the answer
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Descent, Inc., produces a variety of climbing and mountaineering equipment. One of its products is a traditional three-strand cl
Rainbow [258]

Solution :

Assuming $\sigma_1^2=\sigma_2^2$

We have to test

$H_0:\mu_1=\mu_2$

Against H_a: \mu_1 \neq \mu_2

Level of significance, $\alpha = 0.05$

$s_p=\sqrt{\frac{(n_1-1)s_1^2+ (n_2-1)s_2^2}{n_1+n_2-2}}$

$s_p=\sqrt{\frac{(25-1)(425)^2+ (20-1)(415)^2}{25+20-2}}$

   = 420.6107

Under H_0, the t-statistics is as follows:

$t=\frac{(\overline{x_1} - \overline{x_2})}{s_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}} \sim $             $\text{t with }(n_1+n_2-2) \ DF$

$t=\frac{(7200-7087)}{(420.6107)\sqrt{\frac{1}{25}+\frac{1}{20}}}$

 = 0.90

DF = (25 + 20 - 2)

    = 43

P-value of the test = 0.375

Since the p value is more than 0.05, we fail to reject our null hypothesis.

There is no difference between then mean tensile strength of the ropes that is produced in the Bozeman and Challis.

3 0
3 years ago
R + 8 > 21 what is the answer
topjm [15]

Answer:

Step-by-step explanation:

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░░░▌░▄▄▄▐▌▀▀▀░░ This is Bob

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6 0
3 years ago
If x=3 substitute the value of x into the expression and simplify 3x+6
kotykmax [81]

Answer:

15

Step-by-step explanation:

Plug in 3 as x:

3x + 6

3(3) + 6

9 + 6

= 15

So, the simplified expression if x = 3 is 15

7 0
3 years ago
Work out the area of this trapezium
skelet666 [1.2K]

Step-by-step explanation:

Area = ½ × b × h

= ½ × (7.9 + 10.8) × 6.2

= ½ × 18.7 × 6.2

= ½ × 115.94

= <u>5</u><u>7</u><u>.</u><u>9</u><u>7</u><u> </u><u>cm²</u>

So, the area of that trapezium is 57.97 cm²

<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

6 0
3 years ago
150 centimeters is equivalent to
Elina [12.6K]
<span>150 centimeters is equivalent to 1 1/2 meters </span>
6 0
3 years ago
Read 2 more answers
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