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Ulleksa [173]
3 years ago
6

A plane has fees for 420 passengers 15% of the seats are empty how many passengers are on the plane​

Mathematics
1 answer:
serious [3.7K]3 years ago
3 0

Answer:

357 passengers

Step-by-step explanation:

\frac{x}{420}=\frac{85}{100} (The \frac{85}{100} is 85% of the 100% people because 15% is missing)

When you cross-simplify you get: \frac{x}{21}=\frac{85}{5} which is \frac{x}{21}=17

Finally, multiply 17 by 21 to get x.

Therefore, x=357

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Answer:

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Decison rule :

|Test statistic | > TCritical ; reject H0

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