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Amanda [17]
3 years ago
9

Bart and Sam played a game in which each player earns or loses points in each turn .A player’s total score after two turns in th

e sum of his points earned or loss .the player with the greater score after two turns win .bart earned 123 points and lost 180 points .sam earned 185 points and loss 255 points. Witch person won the game?explain. The sum of two integers with different sings is 8 . Give two possible integers that fit in the description
Mathematics
1 answer:
natulia [17]3 years ago
3 0
For the Bart and Sam question, Bart had 123 - 180 or -57 points. Sam had 185 - 255 or -70 points, so Bart won the game by 13 points. The other question about the integers will work with any two numbers where one is 8 larger than the other. Take the smaller number and make it negative. Two such number pairs would be 9 and -1 or 29 and -20.
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You're conducting a significance test for H0 : p = .35, Ha : p < .35. In a sample of size 40, you identify a count of 11 succ
nordsb [41]

Answer: c. –1 and .1587

Step-by-step explanation:

As per given , we have

Null hypothesis : H_0 : p= 0.35

Alternative hypothesis :  H_1 : p< 0.35

Since Alternative hypothesis is left-tailed ,so the test must be a left tailed test .

Z -Test statistic for proportion = z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

, where p= population proportion

\hat{p} = sample proportions

n= Sample size.

Let x be the number of successes.

For n= 40 and x= 11

\hat{p}=\dfrac{x}{n}=\dfrac{11}{40}=0.275

Then ,  z=\dfrac{0.275-0.35}{\sqrt{\dfrac{0.35(1-0.35)}{40}}}

z=\dfrac{-0.075}{\sqrt{0.0056875}}

z=\dfrac{-0.075}{0.075415515645}

z=-0.99449031619\approx-1

By using z-table ,

P-value for left-tailed test = P(z<-1)= 1-P(z<1)    [∵ P(Z<-z)= 1-P(Z<z) ]

= 1-0.8413

=0.1587

Hence, the -score and P-value are  <u>–1 and 0.1587</u> .

So the correct option is c. –1 and .1587

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Step-by-step explanation:

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The quadrilateral would be a rectangle.

explanation:

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Answer:3100 with 9%

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