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Karo-lina-s [1.5K]

3 years ago

12

An isosceles triangle has at least two congruent sides. The perimeter of a certain isosceles triangle is at most 12 in. The leng

th of each of the two congruent sides is 5 in. What are the possible lengths of the remaining side?

1 answer:

Luba_88 [7]3 years ago

5 0

<span>5+5=10
12-10=2

Equal to or less than 2 inches...not sure
hope this helps</span>

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Answer:

The 95% confidence interval for the population mean rating is (5.73, 6.95).

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The population standard deviation is not known, so we have to estimate it from the sample standard deviation and use a t-students distribution to calculate the critical value.

The sample mean is M=6.34.

The sample size is N=50.

When σ is not known, s divided by the square root of N is used as an estimate of σM:

$s_M=\dfrac{s}{\sqrt{N}}=\dfrac{2.16}{\sqrt{50}}=\dfrac{2.16}{7.071}=0.305$

The degrees of freedom for this sample size are:

$df=n-1=50-1=49$

The t-value for a 95% confidence interval and 49 degrees of freedom is t=2.01.

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