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vodomira [7]
3 years ago
14

Halp! Attachment below!

Mathematics
1 answer:
N76 [4]3 years ago
6 0
1 hr and 45 minutes. EST is 1 hour ahead of CST
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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

8 0
3 years ago
A rectangular prism is 15 centimeters long, 33 centimeters wide, and 29 centimeters high. What is the surface area of the rectan
Mama L [17]

Answer:

add 15 + 33+29 =77

Step-by-step explanation:

mark me brainliest

4 0
2 years ago
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An experiment is performed where a card is chosen from a desk of playing cards
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Ok
I need the question for this
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3 years ago
You bake 42 chocolate cupcakes and 28 red velvet cupcakes.You package them in boxes that have the same ratio of chocolate to red
blondinia [14]

Answer: 16 red velvet cupcakes.

Step-by-step explanation:

To solve this problem you can apply the following proccedure:

- Let's call the number of red velvet cupcakes in a box that has 24 chocolate cupcakes: x

- Based on the information given in the problem, you can set up the following proportion and Solve for x<em>:</em>

\frac{42}{28}=\frac{24}{x}\\\\1.5x=24\\x=16

There are 16 red velvet cupcakes in a box that has 24 chocolate cupcakes.

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3 years ago
56 / w x for 100 what is the meaning of W?
DENIUS [597]

WidthAnswer:

Step-by-step explanation:

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