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bogdanovich [222]
2 years ago
12

A certain basketball player averaged 39 points per game

Mathematics
1 answer:
vichka [17]2 years ago
8 0

Answer:

the anwser is 12

Step-by-step explanation:

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Define z_alpha to be a z-score with an area of alpha to the right. For Example: z_0.10 means P(Z > z_0.10) = 0.10. We would a
Reptile [31]

Answer:

a) P(-z_0.025 < Z < z_0.025)

For this case we want a quantile that accumulates 0.025 of the area on the tails of the normal standard distribution, and for this case we can calculate the z value with the following excel codes:

"=NORM.INV(0.025,0,1)"

"=NORM.INV(0.025,0,1)"

And for this case the two values are :z_{crit}= \pm 1.96

b) P(-z_{\alpha/2} < Z < z_{\alpha/2})

For this case we want a quantile that accumulates \alpha/2 of the area on the tails of the normal standard distribution, and for this case we can calculate the z value with the following excel codes:

"=NORM.INV(alpha/2,0,1)"

"=NORM.INV(alpha/2,0,1)"

c) For this case we want to find a value of z that satisfy:

P(Z > z_alpha) = 0.05.

And we can use the following excel code:

"=NORM.INV(0.95,0,1)"

And we got z_{\alpha/2}=1.64

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Part a

P(-z_0.025 < Z < z_0.025)

For this case we want a quantile that accumulates 0.025 of the area on the tails of the normal standard distribution, and for this case we can calculate the z value with the following excel codes:

"=NORM.INV(0.025,0,1)"

"=NORM.INV(0.025,0,1)"

And for this case the two values are :z_{crit}= \pm 1.96

Part b

P(-z_{\alpha/2} < Z < z_{\alpha/2})

For this case we want a quantile that accumulates \alpha/2 of the area on the tails of the normal standard distribution, and for this case we can calculate the z value with the following excel codes:

"=NORM.INV(alpha/2,0,1)"

"=NORM.INV(alpha/2,0,1)"

Part c

For this case we want to find a value of z that satisfy:

P(Z > z_alpha) = 0.05.

And we can use the following excel code:

"=NORM.INV(0.95,0,1)"

And we got z_{\alpha/2}=1.64

6 0
3 years ago
What is the value of y in this triangle?<br><br> A ) 124°<br> B ) 98°<br> C ) 56°<br> D ) 36°
Zolol [24]
180-134=46 98+46=144. 180-144=36. angle y=36. So the answer is D)36.
5 0
3 years ago
Read 2 more answers
What is the quotient of 305 ÷5
gtnhenbr [62]
The quotient is 61 ☺☺☺
6 0
3 years ago
I need help with 1-2 please help
valkas [14]
1. The dimensions of the rectangle are 3 units by 4 units.

2. 0.3 x 0.4 = 0.12
7 0
3 years ago
Find the area.<br> 5.cm<br> 5 cm<br> 3 cm<br> 8 cm
Talja [164]

Answer: 600

Step-by-step explanation:

5x5=25

3x8=24

25x24=600

7 0
3 years ago
Read 2 more answers
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