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Sedaia [141]
3 years ago
13

For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. (to 2 decimals)

Mathematics
2 answers:
Fiesta28 [93]3 years ago
6 0

Answer:

The area to the right of 2.120 is 0.0250 rounded to 4 decimal places

Step-by-step explanation:

We are required to find P(t>2.120)

To find this area we have to use the t distribution. Also we can use technology like excel to find the area to the right of 2.120.

The excel function is:

=TDIST(2.120,16,1)=0.0250

Where:

2.120 is the value of the test statistic

16 is the degrees of freedom

1 denotes the one tailed.

Therefore, the area to the right of 2.120 is 0.0250

kirza4 [7]3 years ago
4 0

Answer:

0.03

Step-by-step explanation:

From t-table, at df=16 and t=2.120, probability is 0.025 or 0.03(to 2 decimals).

The probability refers to area to the right of 2.120

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The answer:
For more explanation please look at the image.
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the following method shows:

<span>sin(40°)= opposite side  / hypotenuse,  opposite side = b, hypotenuse = AB= 20cm
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0.05 is 1/10 the value of what
Dafna1 [17]

Answer:

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8 0
3 years ago
The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This dist
alexira [117]
<h3>Answer:   83.85%</h3>

This value is approximate.

==========================================================

Explanation:

Let's compute the z score for x = 40

z = (x-mu)/sigma

z = (40-47)/7

z = -1

We're exactly one standard deviation below the mean.

Repeat these steps for x = 68

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This score is exactly three standard deviations above the mean.

Now refer to the Empirical Rule chart below. We'll add up the percentages that are between z = -1 and z = 3. This consists of the two pink regions (each 34%), the right blue region (13.5%) and the right green region (2.35%). These percentages are approximate.

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