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labwork [276]
3 years ago
10

The Student Recreation Center wanted to determine what sort of physical activity was preferred by students. In a survey of 68 st

udents, 49 indicated that they preferred outdoor exercise over exercising in a gym. They estimated the proportion of students at the university who prefer outdoor exercise as ( 0.6139 , 0.8272 ), with 95% confidence. Which of the following is an appropriate interpretation of this confidence interval?
1) We are 95% confident that the proportion of exercise time which the average student spends outdoors is between 0.6139 and 0.8272.

2) We are certain that 95% of students will be between 0.6139 and 0.8272.

3) We are 95% confident that the proportion of all students at the university who prefer outdoor exercise is between 0.6139 and 0.8272.

4) We are 95% confident that the proportion of students surveyed who prefer outdoor exercise is between 0.6139 and 0.8272.

5) We cannot determine the proper interpretation of this interval.
Mathematics
1 answer:
KengaRu [80]3 years ago
5 0

Answer:

3) We are 95% confident that the proportion of all students at the university who prefer outdoor exercise is between 0.6139 and 0.8272.

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Answer:

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Step-by-step explanation:

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2 years ago
Seven less than the quotient of a number, x, and twelve is five times the number. Which answer represents this situation??
erica [24]

Answer:

Option b is correct.

Step-by-step explanation:

From the given condition : Seven less than the quotient of a number, x, and twelve is five times the number.

Here, the number is x

The quotient of a number x and twelve is expressed as ,  \frac{x}{12}

Seven less than the quotient of a number, x, and twelve is expressed as,  \frac{x}{12}-7

Five times the number mean, 5x

Therefore, we have an equation in the form of <em>x</em>  from the given condition as:

\frac{x}{12}-7=5x .







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2 years ago
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2 years ago
Thomas bought 80 tickets for rides at an amusement park. Each ride cost five tickets, Thomas has been on X right so far. Select
dsp73

Answer:

A. 80-5x

Step-by-step explanation:

Let the number of rides be represented by = x

Thomas bought 80 tickets for rides at an amusement park. Each ride cost five tickets, Thomas has been on x right so far.

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The expressions to show the number of tickets that Thomas has left is written as:

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Option A is the correct option.

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