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Serggg [28]
3 years ago
7

A marketing representative wants to estimate the proportion of people in a state who like the new design on the packaging of a c

ertain cleaning product. The representative interviewed 100 people at a certain supermarket, and 82 people indicated that they liked the new design. Have the conditions for creating a confidence interval for the population proportion bemer A) Yes, because the sample was selected at random Yes, because sampling distributions of population proportions are mod c e s, because the sample is large enough to satisfyere normality condition D) No, because the sample is not large enough to satisfy the normalty.com c) No, because the sample may not be representative of speech
Mathematics
1 answer:
Effectus [21]3 years ago
8 0

Answer:

The correct option is;

(B) Yes, because sampling distributions of population proportions are modeled with a normal model.

Step-by-step explanation:

Here we have the condition for normality being that where we have a population with a given mean and standard deviation, while a sufficiently large sample is drawn from the population while being replaced, the distribution of the sample mean p will be distributed normally according to central limit theorem.

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Is 6/12 and 15/30 proportional?
sveticcg [70]

Answer:

yes

Step-by-step explanation:

6 is half of 12. 15 is half of 30. The ratios are equal, so the fractions are proportional.

Answer: yes

Also, you can reduce both fractions.

Divide the numerator and denominator of 6/12 by 6 to get 1/2.

Divide the numerator and denominator of 15/30 by 15 to get 1/2.

Since both fractions reduce to 1/2, 6/12 and 15/30 are equivalent fractions and are proportional.

5 0
3 years ago
The vertex of a parabola is at (-2,-3). When the y-value is -2, the x-value is -5. What is the coefficient of the squared term i
denis23 [38]

Answer:

y=a(x+2)^{2} -3\\-2=a(-5+2)^{2} -3\\\frac{-2+3}{9} =a\\a=\frac{1}{9} \\

Step-by-step explanation:

4 0
3 years ago
Giving it all out, leaving brainly soon. points, thanks, and 5 stars​
NISA [10]
Answer :
Why lol ????
7 0
3 years ago
Read 2 more answers
4(x - 6y)<br> please dont put stupid answers and please show some work
Lostsunrise [7]
4x-24y. Basically you distribute 4 to x which makes it 4x and distribute 4 to 6 which multiplies to 24 and you drop y next to it making it 24y
8 0
3 years ago
On a certain day the exchange rate was 60 u.s dollars 50 euro. How many US dollars were 70 euro worth that day? Show that your a
gayaneshka [121]
This is what I got:

60/50 = X/70
70x60/59 = X
X = 84
8 0
3 years ago
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