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3 years ago

The temperature rises +3 °C each hours for four hours. By How many degrees Celsius did the temperature rise in four hours?

Mathematics

1 answer:

Paul [167]3 years ago

5 0

Answer:12°C

Step-by-step explanation:

Because the temperature rises +3°C in a hour, and rised for four hours. So it's 3°C*4=12°C.

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3 years ago

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2 years ago

A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a

Stella [2.4K]

Answer:

b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.

Step-by-step explanation:

Confidence interval:

Confidence level of x%

We build from a sample.

Between a and b.

Intepretation: We are x% sure that the population mean is between a and b.

In this question:

90%

45 CEO's

Between ($139,048, $154,144).

We are 90% sure that the mean salary of all CEO's falls within this interval.

The correct answer is:

b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.

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