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lara31 [8.8K]
3 years ago
13

Who is correct? Bobby or Betty

Mathematics
1 answer:
scZoUnD [109]3 years ago
3 0

Answer:

I think Betty is correct

Step-by-step explanation:

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A researcher asks random samples of residents of two separate counties as to whether they had purchased organically grown food i
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Answer:

2 proportions z test

The two populations are named as residents from the first county and residents from the second county.

Step-by-step explanation:

This is testing hypothesis about the difference between two proportions.

When the proportions are tested if they are the test statistic

z= ( p^1-p^2)- (p1-p2) / √p₁q₁/n₁ + p₂q₂/ n₂

where p^1 is the proportion of success in the first sample and   p^2 of size n₁   is the proportion of success in the second sample of size n₂ with unknown proportions of successes p1 and p2 respectively.

When the sample sizes are sufficiently large

z= ( p^1-p^2)- (p1-p2) / √p₁q₁/n₁ + p₂q₂/ n₂ is approximately standard normal.

The two populations are named as residents from the first county and residents from the second county.

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2 years ago
Jeremy is going to roll a fair 6 sided die 180 times.
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Solve this by dividing the 180 by 6. This results in 30. So, each number should be rolled 30 times. There are only two numbers greater than 4. Multiply 30 by 2 to get your answer, 60.
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Jose pays 8 payments of $4 each to a game store. He returns one game and receives $20 back. What is the change to the amount of
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Answer:

the answer would be -12

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The change to the amount of money he has is -$12 because

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The graph of a function g is shown..... (a) Which of the following verifies that g satifies the hypotheses of the Mean Value The
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A. g is continuous on the closed interval [0,8]

g is differentiable on the open interval (0,8)

B. We can approximately say that c is 2.2 and 6.5

C. c is approximately 3.7 and 5.5 in this case

What is the mean value theorem?

The mean value theorem basically asserts that there is at least one place where the tangent to the arc is parallel to the secant through its ends for any given planar arc between two endpoints. One of the most significant findings in real analysis is this one.

Here, we have

A. Therefore, according to the theorem, the hypothesis for the mean value theorem for the given function must be

g is continuous on the closed interval [0,8]

g is differentiable on the open interval (0,8)

Hence, options fourth and sixth are rightly selected.

B. According to graph, f(0) = 1 and f(8) = 4

We will see this graphically, by first drawing the line joining the endpoints and then see is parallel lines where they intersect the graph

y = g(x) 0 1 2.2 6.5

Hence, we can approximately say that c is 2.2 and 6.5.

C. Similarly, we will do for the interval [2.6] as we did in part b), we get

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Hence, c is approximately 3.7 and 5.5 in this case

To learn more about the mean value theorem from the given link

brainly.com/question/29056690

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