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Thepotemich [5.8K]
2 years ago
8

The cost to rent a canoe for different periods of time is shown in the table below.

Mathematics
1 answer:
Alexeev081 [22]2 years ago
6 0
So what is it about
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A random sample of 4"4 fields" of barley has a mean yield of "49.6"49.6 bushels per acre and standard deviation of 7.997.99 bush
ExtremeBDS [4]

Answer:

The critical value that should be used in constructing the interval is T = 5.8408.

The 99% confidence interval for the true mean yield is between 2.943 bushels per acre and 96.268 bushels per acre.

Step-by-step explanation:

We have the standard deviation of the sample, so we use the students t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 4 - 1 = 3

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 3 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 5.8408. This is the critical value.

The margin of error is:

M = T*s = 5.8408*7.99 = 46.668 bushels per acre

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 49.6 - 46.668 = 2.943 bushels per acre.

The upper end of the interval is the sample mean added to M. So it is 49.6 + 46.668 = 96.268 bushels per acre.

The 99% confidence interval for the true mean yield is between 2.943 bushels per acre and 96.268 bushels per acre.

8 0
3 years ago
kyle's room is 12.5 feet long. he wants to put up a poster that takes up 0.35 of the length of the wall.how lon should his poste
faust18 [17]

Answer:

The poster should be 4.375 ft long.

Step-by-step explanation:

0.35 * 12.5 ft = 4.375 ft

Answer: The poster should be 4.375 ft long.

7 0
3 years ago
How to solve equations with 2 variables with substitution and elimination?
AnnZ [28]
Can you give an example of what integers you'd like me to do?
8 0
2 years ago
Help pleaseeeeeeeeee
Fed [463]

Area of original rectangle = 21 • 15 = 315 yd^2

Area of new rectangle is 3 times the original size: 3^2 • 315

2835 yd^2.

Other way:

3(21) • 3(15)

63 • 45

2835 yd^2

//Hope it helps.

8 0
3 years ago
What Is 1+1X4-2 This Is Easy
RSB [31]

Answer: 3

Step-by-step explanation: PEMDAS

First you multiple 1 and 4 then add 1 and subtract it by 2/

5 0
3 years ago
Read 2 more answers
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