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kirill115 [55]
3 years ago
10

Given that a 90% confidence interval for the mean height of all adult males in Idaho measured in inches was [62.532, 76.478]. Wh

at was the point estimate used to estimate the mean height of all adult males in Idaho?
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
3 0

Answer:

The point estimate used to estimate the mean height of all adult males in Idaho is 69.505 inches.

Step-by-step explanation:

Each confidence interval has two bounds, the lower bound and the upper bound. The points estimate used to estimate the mean is the halfway point between those two bounds, that is, the sum of those two bounds divided by two.

In this problem, we have that:

Lower bound: 62.532

Upper bound: 76.478

Point estimate: (62.532 + 76.478)/2 = 69.505

The point estimate used to estimate the mean height of all adult males in Idaho is 69.505 inches.

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Answer:

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Step-by-step explanation:

Sorry need the points just guessing!

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Solve for x: -2x + 1 = -6
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<h2>Answer:</h2>

This is a 2-step equation. We will solve it in 2 steps.

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The solution for this equation is x =<em> </em>\frac{7}{2}.

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What is the sum of the first seven terms of the geometric series 2 - 10 +50 -...?
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Answer:

26042.

Step-by-step explanation:

What's the first term of this geometric series?

2.

What's the common ratio of this geometric series?

Divide one of the terms with the previous term. For example, divide the second term -10 with the first term 2.

\displaystyle r = \frac{-10}{2} = -5.

What's the sum of this series to the seventh term?

The sum of the first n terms of a geometric series is:

\displaystyle a_1 \cdot \frac{1-r^{n}}{1-r},

where

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\displaystyle 2 \times\frac{1- (-5)^{7}}{1- (-5)}=26,042.

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Games at a carnival cost $3. prizes awarded to winners cost $145.65. how many games must be played to make $50
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Answer:

Step-by-step explanation:

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Keith exercises x hours a week. Troy exercises three hours less than Keith and Joe exercises two times more than Troy. Which exp
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If Keith is represented by x, and Joe is three less than Keith, Troy is represented by x-3. 
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Keith = x
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