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aleksandr82 [10.1K]
3 years ago
13

The circumference of a circle is 176m.find its diameter​

Mathematics
1 answer:
andreev551 [17]3 years ago
6 0
<h3><u>Given</u>:-</h3>

Circumference of a circle = 176 m

<h3><u>To be calculated:- </u></h3>

Calculate the diameter.

<h3><u>Formula used:- </u></h3>

Circumference of circle = 2πr

<h3><u>Solution:-</u></h3>

We know that,

Circumference of circle = 2πr

=> 176 = 2 × 22/7 × r

=> 176 × 7 = 44 × r

=> 1232/44 = r

=> r = 28 m

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Answer: It is sufficient evidence that it will reject the null hypothesis.

Step-by-step explanation:

Since we have given that

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H_0:p\leq 0.5\\\\H_a:p>0.5

So, test statistic would be

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And the p-value = 0.006 at z=2.514.

Since p-value < α = 0.10 significance level.

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3 years ago
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A sample from 16 shortstops was obtained in an effort to determine whether shortstops have higher salaries than other players. T
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1.16 to 2.75

Step-by-step explanation:

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\mu = 1.85

The population standard deviation was 1.61.

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z at 95% confidence level = 1.96

Substitute the values in the formula

Confidence interval :1.95-1.96\cdot\frac{1.61}{\sqrt{16}} to 1.95+1.96\cdot\frac{1.61}{\sqrt{16}}

Confidence interval : 1.16 to 2.75

Hence the 95 percent confidence interval for these data is 1.16 to 2.75

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3 years ago
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The answer would be m= -4/3
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Step-by-step explanation:

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