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3 years ago

9

Paul needs to score higher than 174 to win his bowling tournament. He currently has a score of 42. Which of the following shows

how many more points, p, that Paul needs to get to score higher than 174?

1 answer:

mezya [45]3 years ago

3 0

Answer:

He needs 132

Step-by-step explanation:

hope it helps

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If triangle ABC has the following measurements, find the measure of angle A.

Maru [420]

Answer:

44.7 degrees

I took a quiz with this question and that was the correct answer.

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3 years ago

What goes into 9 12 6 3 and 4

Leokris [45]

It could possibly be one.

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3 years ago

Researchers wondered if there was a difference between males and females in regard to some common annoyances. They asked a rando

inysia [295]

Answer:

a)

The proportions of the females and males who took the survey who are annoyed by the behavior in question are<u> 0.3301 </u>and_<u>0.3791 </u>respectively

b)

<em>D) The data come from a Population that is Normally distributed</em>

<em>F) the samples are independent</em>

<em>c) </em>

<em>Null hypothesis: H₀: </em> $p_{m} ^{-} - p^{-} _{fm} \leq 0$

<em>Alternative Hypothesis H₁</em>: $p_{m} ^{-} - p^{-} _{fm} \geq 0$

Step-by-step explanation:

Given data Among the 530 males surveyed, 175 responded "Yes

The sample proportion of males

$p_{m} ^{-} = \frac{x}{n} = \frac{175}{530} = 0.3301$

The sample proportion of 575 Females surveyed, 218 responded "Yes

$p_{fem} ^{-} = \frac{x}{n} = \frac{218}{575} = 0.3791$

a)

The proportions of the females and males who took the survey who are annoyed by the behavior in question are<u> 0.3301 </u>and_<u>0.3791 </u>respectively

b)

<em>The data come from a Population that is normally distributed.</em>

<em>The two samples are independent</em>

c)

<em>Null hypothesis: H₀: </em> $p_{m} ^{-} - p^{-} _{fm} \geq 0$

<em>Alternative Hypothesis H₁</em>: $p_{m} ^{-} - p^{-} _{fm} \leq 0$

We will use two samples Z - hypothesis test

$Z = \frac{p^{-} _{m} - p^{-} _{fem} }{se(p^{-} _{m}-p^{-} _{fem} ) }$

$Se(p_{m} -p_{fem}) = \sqrt{\frac{p_{m}(1-p_{m}) }{n_{m} }+\frac{p_{fem} (1-p_{fem} )}{n_{fem} } }$

$Se(p_{m} -p_{fem}) = \sqrt{\frac{0.3301(1-0.3301) }{530 }+\frac{0.3791(1-0.3791)}{575} }$

$Se(p_{m} ^{-} - p^{-} _{fem} ) = \sqrt{0.000826} = 0.0287$

The test statistic

$Z = \frac{0.3301-0.3791}{0.02875}$

Z = -1.7043

|Z| = |-1.7043|

The tabulated value Z₀.₉₅ = 1.96

The calculated Z= 1.7043 < 1.96 at 0.05 level of significance

The null hypothesis is accepted

<u><em>Conclusion:-</em></u>

The evidence suggest not a higher proportion of females are annoyed by this behavior

4 0

3 years ago

What is the result of 36÷9? Use the number line to help find the answer.

max2010maxim [7]

Well 36 divided by 9 is 4 so it’s 4

3 0

3 years ago

The sum of theee consecutive numbers is 90. what is the smallest of the three numbers?

zlopas [31]

29

Note that consecutive numbers have a difference of 1 between them.

let n be the smallest integer then the three integers can be expressed as

n, n + 1 , n + 2

the sum is then

n + n + 1 + n + 2 = 90

3n + 3 = 90

subtract 3 from both sides of the equation

3n = 90 - 3 = 87

divide both sides by 3

n = $\frac{87}{3}$ = 29

the three integers are 29, 30, 31 → the smallest is 29

4 0

3 years ago