1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oksana_A [137]
3 years ago
6

Using traditional methods it takes 101 hours to receive an advanced driving license. A new training technique using Computer Aid

ed Instruction (CAI) has been proposed. A researcher believes the new technique may reduce training time and decides to perform a hypothesis test. After performing the test on 280 students, the researcher decides to reject the null hypothesis at a 0.05 level of significance.
What is the conclusion?
a. There is sufficient evidence at the 0.02level of significance that the new technique reduces training time.
b. There is not sufficient evidence at the 0.02 level of significance that the new technique reduces training time.
Mathematics
1 answer:
babunello [35]3 years ago
6 0
The answer will be B
You might be interested in
Graph the equations to solve the system y=x+4 y= -x - 6
Mama L [17]

Answer:

(-5, -1)

General Formulas and Concepts:

<u>Algebra I</u>

Functions

Graphing

  • Reading a Cartesian Plane
  • Coordinates (x, y)

Solving systems of equations by graphing

Step-by-step explanation:

Where the 2 equations intersect is the solution to the systems of equations.

5 0
3 years ago
HELPPP!!!!!!
Furkat [3]
<h3>Answer: Choice D)  31.2 miles</h3>

This value is approximate.

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

Explanation:

Let's focus on the 48 degree angle. This angle combines with angle ABC to form a 90 degree angle. This means angle ABC is 90-48 = 42 degrees. Or in short we can say angle B = 42 when focusing on triangle ABC.

Now let's move to the 17 degree angle. Add on the 90 degree angle and we can see that angle CAB, aka angle A, is 17+90 = 107 degrees.

Based on those two interior angles, angle C must be...

A+B+C = 180

107+42+C = 180

149+C = 180

C = 180-149

C = 31

----------------

To sum things up so far, we have these known properties of triangle ABC

  • angle A = 107 degrees
  • side c = side AB = 24 miles
  • angle B = 42 degrees
  • angle C = 31 degrees

Let's use the law of sines to find side b, which is opposite angle B. This will find the length of side AC (which is the distance from the storm to station A).

b/sin(B) = c/sin(C)

b/sin(42) = 24/sin(31)

b = sin(42)*24/sin(31)

b = 31.1804803080182 which is approximate

b = 31.2 miles is the distance from the storm to station A

Make sure your calculator is in degree mode.

8 0
3 years ago
I mark brianlest just help me;-;
Rina8888 [55]

Answer:

B)113.04 cm^2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve the following system of linear equations by graphing:<br> 2x + 2y = 10<br> 8x + 8y = 24
andriy [413]

Answer:

Step-by-step explanation:

-8x - 8y = -20

8x + 8y = 24

0 ≠ 4

2y = -2x + 10

y = -x + 5

8y = -8x + 24

y = -x + 3

inconsistent

7 0
2 years ago
Can you help me please? explain why its a yes or no.​
Rashid [163]

Answer: No

Step-by-step explanation: it’s a no because. 19 - 15 does not equal out to 7 19 - 15 is 4 and that’s the wrong answer for 19 -15


hope this helps and is the right answer!

6 0
2 years ago
Other questions:
  • weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probabi
    15·1 answer
  • Anisha invested $8,000 in an account that earns 10% interest How much money will she have in 15 years of the interest is compoun
    12·1 answer
  • Jason scored a total of 38.14 points in four events during the state gymnastic competition .If he had the same score for each ev
    14·2 answers
  • A subway train on the Red Line arrives every eight minutes during rush hour. We are interested in the length of time a commuter
    7·1 answer
  • Use mulipation to find 2 equivalent fractions
    8·1 answer
  • Complete the explanation of the error.
    5·1 answer
  • What is the answer to this equation 1 2/5÷5/7
    13·2 answers
  • A 6​-ft vertical post casts a ​16-in shadow at the same time a nearby cell phone tower casts a ​124-ft shadow. How tall is the c
    6·1 answer
  • -1 1/4 × -4/5+1/4÷3 <br> 5/9×1/11+5/9×4/11-5/9×14/11
    7·1 answer
  • You invest $4000 at 7% compounded weekly for 4 years. How much is the investment worth at the end of the 4 years?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!