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
bonufazy [111]
3 years ago
13

given that a test statistic in a left tailed test is z equals -1.25, use a 0.05 significance level to find the p-value and state

the conclusion about the null hypothesis

Mathematics
1 answer:
mr Goodwill [35]3 years ago
5 0

Answer:

The <em>p-</em>value of the test is 0.106.

The null hypothesis will be accepted at 5% level of significance.

Step-by-step explanation:

The hypothesis test is left-tailed.

The test statistic value is: <em>z</em> = -1.25.

The significance level of the test is: <em>α</em> = 0.05.

The <em>p</em>-value of a left-tailed hypothesis test is:

p-value=P(Z

The <em>p-</em>value of the test is 0.106.

**Use the <em>z-</em>table for the probability.

<u>Decision rule:</u>

If the <em>p</em>-value is less than the significance level the null hypothesis will be rejected and if it is more than the significance level the null hypothesis will be accepted.

The <em>p</em>-value = 0.106 > <em>α</em> = 0.05.

The null hypothesis will be accepted at 5% level of significance.

You might be interested in
What is does a equal
Blababa [14]

Answer:

<u>a = 13</u>

Step-by-step explanation:

We should know that: The sum of the interior angles of the triangle = 180°

Given the measure of the angles: (6a - 2) , (5a - 13) and (5a - 13)

So,

(6a - 2) + (5a - 13) + (5a - 13) = 180°

16 a - 28= 180               ⇒ Add 28 to both sides

16 a = 180 + 28 = 208  ⇒ Divide both sides by 16

a = 208/16 = 13

5 0
3 years ago
Find the value of the probability of the standard normal variable Z corresponding to this area for problems 1-3.
Semenov [28]

Answer:

Explained below.

Step-by-step explanation:

The complete question is:

Find the value of the probability of the standard normal variable Z corresponding to this area for problems 1-3.

1. P(Z < 1.62)

2. P(Z > -1.57)

3. P(-1.41 < Z < 0.63)

Solution:

Use Excel to solve the problems.

(1)

P(Z < 1.62)  =NORM.S.DIST(1.62,TRUE)

                 = 0.9474

(2)

P(Z > -1.57)  = P (Z < 1.57)

                  =NORM.S.DIST(1.57,TRUE)

                  = 0.9418

(3)

P(-1.41 < Z < 0.63) = P (Z < 0.63) - P (Z < -1.41)

                             =NORM.S.DIST(0.63,TRUE) - NORM.S.DIST(-1.41,TRUE)

                             = 0.7357 - 0.0793

                             = 0.6564

7 0
3 years ago
Find the discriminant of the quadratic equation 4x^2+6x+5=0
loris [4]
The discriminant is -44
7 0
3 years ago
The volume of a cube is 216 inches what is the length of each side of the cube
Andreyy89
6. 6 x 6 x 6 = 216 so 6^3 is 216
8 0
3 years ago
Evaluate each expression if a = 3.45 and b = 15.356.<br> 6. b-a.<br> 7. a + b + 5
mestny [16]

Answer:

11.906

23.806

Step-by-step explanation:

here you go also can you check my account for some lyrics i posted :)

4 0
3 years ago
Other questions:
  • Please help me with these
    7·1 answer
  • What is the answer to 6-6-((-5)-7)
    11·1 answer
  • What does VII-IX mean?
    13·1 answer
  • What is 37.025 written in word format
    10·2 answers
  • What is the distance between (-3, 4) and (-3, 10)?
    14·1 answer
  • Convert 165 pounds into kilograms.
    9·1 answer
  • Given the graph below, what is f(5)? *<br> 3 points<br> (3x)
    6·1 answer
  • two planes travel a constant speed. plane A travels 2.800 miles in 5 hours plane B travels 3.885 miles in 7 hours. which plane i
    8·1 answer
  • Andre withdrew spending money from his checking account that initially had $982. What was the amount of his withdrawal, w, if hi
    13·1 answer
  • How is the Golden Ratio calculated from Fibonacci sequence? Please help me tyyy &lt;3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!