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dem82 [27]
2 years ago
8

Can someone help me with these math problems​

Mathematics
1 answer:
Greeley [361]2 years ago
4 0
Refer to the attachment

You might be interested in
"Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if they felt political
melomori [17]

Answer: 0.0158

Step-by-step explanation:

Given : The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly.

According to the given information we have,

Sample size : n= 1000

Sample proportion: \hat{p}=\dfrac{470}{1000}=0.47

The standard error for proportion is given by :-

S.E.=\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

S.E.=\sqrt{\dfrac{0.47(1-0.47)}{1000}}

S.E.=\sqrt{0.0002491}

S.E.=0.0157829021412\approx0.0158

[Rounded to the nearest four decimal places.]

Hence, the standard error for the confidence interval = 0.0158

6 0
2 years ago
Your patience while we update our system.
Masja [62]

Answer:

equation: 320+x=360, answer: 40

Step-by-step explanation:

add 100,200 and 100 to get 320

360-320=40

x=40

8 0
2 years ago
A shoe company got an order for 3 cartons of shoes. There are 42 pairs of
erik [133]

Answer:

126?

Step-by-step explanation:

sense there are 3 cartons and 42 in each carton you would multiply 3 by 42 to get 126.

6 0
2 years ago
Find the slope of the line: (4, 4), (5, 3)
fredd [130]

Answer:

-1

Step-by-step explanation:

we would use the slope formula which is y2-y2/x2-x1

so 3-4/5-4= -1

8 0
2 years ago
Use the Distributive Property to simplify the expression. (8⋅7)+(8⋅5)
yawa3891 [41]

Answer:

56 + 40

Step-by-step explanation:

multiply what is in the parenthesis, don't solve all the way because the instructions say to <em>simplify</em><em>.</em>

7 0
2 years ago
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