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Shtirlitz [24]
2 years ago
6

A television network wanted to estimate the proportion of a one-hour time slot that is made up of commercials. The network took

random samples of
10
10 one-hour time slots. The following are the sample proportions the network found in
12
12 samples.

​

Part A

​

​What is the estimated proportion of commercials in all one-hour time slots? Round your answer to the nearest thousandth.
Mathematics
1 answer:
polet [3.4K]2 years ago
5 0

Answer:

120

Step-by-step explanation:

Remember, always round sample size up, regardless of the decimal part. Answer: To find a 95% CI with a margin of error no more than ±3.5 percentage points, where the true population proportion is around 42%, you must survey at least 764 people. 10×764 = 7640; presumably the electorate is larger than that. So, then 10 × 12 = 120

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Jess messed up on the equation
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3 ounces of cinnamon cost $2.40. There are 16 ounces in 1 pound how much the cinnamon cost per pound
faltersainse [42]
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3 0
3 years ago
What is 4 1/2 pint to quart?
Ivanshal [37]

There are two pints every quarter.

So let's convert pints to quarter

   \frac{4\frac{1}{2} }{2} =\frac{\frac{9}{2} }{2} = \frac{9}{4}

There 4 1/2 pint is to 9/4 quarter.

Hope that helps!

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5 0
2 years ago
What is the midpoint of the vertical line segment graphed below? (2, 4), (2, -9) A. (4, -5). B. (2, -5/2). C. (2, -5). D. (4, 5/
omeli [17]

Answer:

B. (2, -\frac{5}{2})

Step-by-step explanation:

Given:

(2, 4) and (2, -9)

Required:

Midpoint of the vertical line with the above endpoints

Solution:

Apply the midpoint formula, which is:

M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})

Where,

(2, 4) = (x_1, y_1)

(2, -9) = (x_2, y_2)

Plug in the values into the equation:

M(\frac{2 + 2}{2}, \frac{4 + (-9)}{2})

M(\frac{4}{2}, \frac{-5}{2})

M(2, -\frac{5}{2})

8 0
2 years ago
Amanda was given three numbers: 8,
Firdavs [7]

Answer:

Yeah, She can.

Step-by-step explanation:

Simply using 8/5

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