3 years ago

Using this number line, which of the following orderings is correct?

Mathematics

1 answer:

gavmur [86]3 years ago

3 0

Answer:

3 is correct

Step-by-step explanation:

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Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company claims that the percentage

quester [9]

Answer: a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : $H_0:p=P$

Alternate hypothesis : $H_1:p\neq P$

So, the test statistic would be

$z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252$

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

$P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219$

Hence, a) -0.2252, b) 0.8219

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3 years ago

Which of these numbers is prime?<br> 25, 26, 35, 39, 43

ELEN [110]

Answer:

The only number prime is 43

Step-by-step explanation:

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3 years ago

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Why is this wrong?<br> What is the rigth answer?

pantera1 [17]

For every 7 votes for candidate a, there are 4 votes for candidate c

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3 years ago

A grocer has two kinds of tea, one selling for 80 cents per pound and the other selling for 60 cents per pound. How many pounds

ruslelena [56]

X*80+y*60= 50*74
x +y =50 | * ( -60)

80x + 60y= 50*74
-60x - 60y=-50*60
---------------------------
20x= 50*(74-60)=50*14
x=50*14/20=35 pounds of 80 cents tea
y=50-35=15 pounds of 60 cents tea

8 0

3 years ago

On a very cold morning, it was -8°F. As the day went on, the temperature rose 2° each hour. which equation shows the temperature

gladu [14]

-8 + 2x
hope that helps

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