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3 years ago

The width of a soccer goal is 7 m how wide is the goal in centimeters

Mathematics

1 answer:

Anika [276]3 years ago

7 0

There are 100 centimeters in one meter, so multiply 7 meters by 100 to find out how many centimeters equal 7 meters.

7 * 100 = 700

There are 700 centimeters in 7 meters, so that means:

The goal is 700 centimeters wide.

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2 years ago

Solve for x. Show your work.

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2 years ago

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2 years ago

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Since an instant replay system for tennis was introduced at a majorâ tournament, men challenged 1399 refereeâ calls, with the re

prohojiy [21]

Answer: The value of test statistic is 0.696.

Step-by-step explanation:

Since we have given that

$n_1=1399\\\\x_1=411\\\\p_1=\dfrac{x_1}{n_1}=\dfrac{411}{1399}=0.294$

Similarly,

$n_2=759, x_2=211\\\\p_2=\dfrac{x_2}{n_2}=\dfrac{211}{759}=0.278$

At 0.01 level of significance.

Hypothesis are :

$H_0:P_1=P_2=0.5\\\\H_a:P_1\neq P_2$

So, the test statistic value would be

$z=\dfrac{(p_1-p_2)-(P_1-P_2)}{\sqrt{\dfrac{P_1Q_1}{n_1}+\dfrac{P_2Q_2}{n_2}}}\\\\z=\dfrac{0.294-0.278}{\sqrt{0.5\times 0.5(\dfrac{1}{1399}+\dfrac{1}{759})}}\\\\z=\dfrac{0.016}{0.023}=0.696$

Hence, the value of test statistic is 0.696.

3 0

2 years ago