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enot [183]
3 years ago
14

The police in a certain city are investigating whether the proportion of minor traffic accidents is greater on Friday nights tha

n on Saturday nights
Mathematics
1 answer:
Ganezh [65]3 years ago
8 0
What city lol? sorry i just need to answer so i can ask question bc i’m lost lol
You might be interested in
Pioneer company has given an aptitude test to 71 potential job applicants. The test score had an average of 81 and a standard de
Agata [3.3K]

Answer:

Follows are the solution to the given points:

Step-by-step explanation:

In point A:

\to df = n - 1 = 71-1= 70

In point B:

\to t = \frac{(x -X)}{s} = \frac{(93-81)}{8} = \frac{12}{8}= 1.5

In point C:

For df = 70, the top 5% critical t score

tcrit = 1.666914479

Thus,

\to 1.666914479 = \frac{(x - 81)}{8}\\\\\to 1.666914479 \times 8 = (x - 81)\\\\\to  13.335315832 = (x - 81)\\\\\to  13.335315832 +81 =x \\\\\to x= 94.335315832

In point D:

For df = 70, the top 5% critical t score

tcrit = -1.666914479

\to -1.666914479 = \frac{(x - 81)}{8}\\\\\to -1.666914479 \times 8= (x - 81)\\\\\to -13.335315832= (x - 81)\\\\\to -13.335315832+81 = x \\\\\to x = 67.664684168\\\\

In point E:

The lower cutoff is 0.10 in the center, which would be around 80 %. The critical point therefore is

tcrit = -1.293762898

\to -1.293762898 = \frac{(x-81)}{8}\\\\\to -1.293762898 \times 8= (x-81) \\\\\to -1.293762898 \times 8= (x-81) \\\\\to -10.350103184=x-81\\\\\to -10.350103184+81=x\\\\\to x=70.649896816

In point F:

The lower cutoff is 0.90 in the center, which would be around 80 %. The critical point therefore is

tcrit = 1.293762898

\to 1.293762898 = \frac{(x-81)}{8}\\\\\to 1.293762898 \times 8= x-81\\\\\to 10.350103184 =x-81\\\\\to 10.350103184 +81=x\\\\\to x = 91.350103184\\

5 0
3 years ago
Here you go the brainless
Aleksandr-060686 [28]
Area of parallelogram
= L × H
= 23 × 13
= 299 feet²
5 0
3 years ago
Which of the following statements is false?
Over [174]
It’s going to be C because it’s false on all the other ones so yeah
6 0
3 years ago
A wedge of cheese in the shape of a triangular prism is shown below.
BabaBlast [244]

Answer:

144 ft^2

Step-by-step explanation:

Back (vertical):  (4 ft)(8 ft) = 32 ft^2

Right side (vert.):  (4 ft)(6 ft) = 24 ft^2

Front (vert.):  (4 ft)(10 ft) = 40 ft^2

Top (horizontal):  A = (1/2)(6 ft)(8 ft) = 48 ft^2 total (top and bottom)

Total surface area is (32 + 24 + 40 + 48) ft^2, or 144 ft^2

7 0
3 years ago
What equation relates the distance, y, and the time, x? ​
seraphim [82]

9514 1404 393

Answer:

  y = 15x

Step-by-step explanation:

You can identify the slope (constant of proportionality) by finding y when x = 1. That value is 15. It goes into the equation as the coefficient of x.

  y = 15x

5 0
3 years ago
Read 2 more answers
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