3 years ago

Please help!

Mathematics

1 answer:

svetlana [45]3 years ago

8 0

Answer:

$4,425.7

Step-by-step explanation:

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Minnesota Public Radio wants to duplicate a survey conducted in 2016 that found that 65% of adults living in Minnesota felt that

vesna_86 [32]

Answer:

The number of people needed is $n =684$

Step-by-step explanation:

From the question we are told that

The population proportion is $p = 0.65$

The margin of error is $E = 0.03$

From the question we are told the confidence level is 90% , hence the level of significance is

$\alpha = (100 - 90 ) \%$

=> $\alpha = 0.10$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the sample size is mathematically represented as

$n =[ \frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * p(1-p)$

=> $n =[ \frac{1.645 }{0.03} ]^2 * 0.65(1-0.65)$

=> $n =684$

6 0

3 years ago

I really need help with this

kupik [55]

Answer:

Oh Stop!!!! This is sooooooooooooo easy! If you would just pay attention in school and not spend all your time trying to buy the new ipad pro maybe you would not have to go to Branily to get a simple answer! Do you think your teacher would like you cheating like this???? I dont think so. So get of of Branily and start studying!!!!

Step-by-step explanation:

4 0

3 years ago

What is the answer to this please help I got put in honors math (4)(25)-300

hoa [83]

Answer: -200

Multiply 25 and 4.

(100)-300

-200

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3 years ago

Please please answer this correctly A private jet takes off from an airfield. It heads 45 miles west, 20 miles north, 45 miles e

erica [24]

Answer:

25 miles

Step-by-step explanation:

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4 years ago

2(4y - 5) < - 2 please help

34kurt

Answer:

y < 1

Step-by-step explanation:

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3 years ago

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