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
Lubov Fominskaja [6]
3 years ago
12

The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed

and the parameter that is being tested. H0: σ = 8.6 H1: σ < 8.6
Mathematics
1 answer:
OlgaM077 [116]3 years ago
3 0

Answer:

Test is Left tailed test

Parameter tested is standard deviation

Step-by-step explanation:

We are given the hypothesis as;

Null hypothesis; H0: σ = 8.6

Alternative hypothesis; H1: σ < 8.6

Where;σ is a constant generally known in statistics as the standard deviation.

Now, it's the alternative hypothesis that will let us know whether this is left tailed, right tailed or two tailed.

Alternative hypothesis says σ < 8.6.

This means that the values of σ that satisfy this hypothesis are less than 8.6 and thus are on the left hand side of 8.6 on a number line. Thus, the shaded region in a normal distribution curve will be on the left.

Thus, it's a left tailed test

You might be interested in
BRAINLIEST <br> please leave a small explanation:)
Contact [7]

Answer:

I say D cuz if u look at it, it's a pretty wide enough angle to be at least 47°

4 0
3 years ago
Read 2 more answers
What is the domain of the function indicated by the points on the coordinate plane?
Sophie [7]
The answer is C if not sorry
7 0
3 years ago
BEST ANSWER GETS BRAINLIEST!! HELP PLEASE
skad [1K]
Area of the sign ( trapezoid ) :
A = ( a + b ) / 2 · h 
where: a = 8, b = 5, h = 5
A = ( 8 + 6 ) / 2 · 5 = 
= 14/2  · 5 = 7 · 5 = 35 ft²
Answer:
B ) 35 square feet
7 0
2 years ago
Read 2 more answers
when camping alone , mr adam uses all of the water in 12 days, then when mrs adams and mr adams camp together they use all of th
professor190 [17]

Using the together rate, it is found that if Mrs Adams camps alone, she will use all the water in 24 hours.

<h3>What is the together rate?</h3>

The together rate is the sum of each separate rate.

In this problem, the rates are:

  • Together: 1/8.
  • Mr Adam: 1/12.
  • Mrs Adams: 1/x.

Hence:

\frac{1}{12} + \frac{1}{x} = \frac{1}{8}

\frac{x + 12}{12x} = \frac{1}{8}

12x = 8x + 96

4x = 96

x = \frac{96}{4}

x = 24

If Mrs Adams camps alone, she will use all the water in 24 hours.

More can be learned about the together rate at brainly.com/question/25159431

6 0
2 years ago
Does anyone know this one?
iogann1982 [59]
It's A.

18 correlates with $350 and 12 correlates with $520.
That crosses off B and D.

18 + 12 days combined equals 30.
That excludes C and D.

A is your answer! :D
6 0
3 years ago
Other questions:
  • A measure of ________ for a numerical data set describes how its values vary with a single number.
    7·1 answer
  • An expression is shown. 57.9×0.086 What is the value of the expression?
    13·1 answer
  • Find the limit of the function algebraically.
    5·1 answer
  • I NEED HELP!!! PLEASE
    11·1 answer
  • Evaluate the expression for the given values: 2x^2 _8xy+3y^2 for x = -3 and y = 2
    15·1 answer
  • Questions number 1
    9·1 answer
  • 4. Simplify: (xy3).(xy)4<br> A. x2 y7<br> B. X4 y12<br> c. x5y7<br> D. x5y12<br> Help meeee!!!!
    15·1 answer
  • What is the length of y in this picture? <br> X <br> 45° <br> 5
    8·1 answer
  • Select the correct answer. How many solutions exist for 2|x-1) = 8?
    12·1 answer
  • What is the equation of the line that passes through (4, -1) and (-2, 3)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!