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Kaylis [27]
3 years ago
8

There are 8 big fish for every___ small fish.

Mathematics
1 answer:
taurus [48]3 years ago
4 0
There are 8 big fish for every 10 small fish, ..... 5 small fish.
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You have been doing research for your statistics class on the prevalence of severe binge drinking among teens. You have decided
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Answer:

(1.218 ; 1.322)

the confidence interval is appropriate

Step-by-step explanation:

The confidence interval :

Mean ± margin of error

Sample mean = 1.27

Sample standard deviation, s = 0.80

Sample size, n = 914

Since we are using tbe sample standard deviation, we use the T table ;

Margin of Error = Tcritical * s/√n

Tcritical at 95% ; df = 914 - 1 = 913

Tcritical(0.05, 913) = 1.96

Margin of Error = 1.96 * 0.80/√914 = 0.05186

Mean ± margin of error

1.27 ± 0.05186

Lower boundary = 1.27 - 0.05186 = 1.218

Upper boundary = 1.27 + 0.05186 = 1.322

(1.218 ; 1.322)

According to the central limit theorem, sample means will approach a normal distribution as the sample size increases. Hence, the confidence interval is valid, the sample size of 914 gave a critical value at 0.05 which is only marginally different from that will obtained using a normal distribution table. Hence, the confidence interval is appropriate

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3 years ago
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there is no question my dude

Step-by-step explanation:

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Surface Area of this composite figure.
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im sorry but there is no picture?

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8.8

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kids cheating in tests.....

8.7749643787

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