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
seropon [69]
3 years ago
13

Consider H0: μ = 45 versus H1: μ < 45. A random sample of 25 observations produced a sample mean of 41.8. Using α = .025 and

the population is known to be normally distributed with σ = 6.
Mathematics
1 answer:
a_sh-v [17]3 years ago
5 0
Given
H0: \ \mu=45 \\  \\ H1: \ \mu\ \textless \ 45
This is a one-tailed test.

z= \frac{41.8-45}{6/ \sqrt{25} } = \frac{-3.2}{6/5} = \frac{-3.2}{1.2} =-2.6667

P(z\ \textless \ -2.6667)=0.00383

Since the p-value of the sample statistic (0.00383) is less that the significant level (0.025), we reject the null hypothesis.
You might be interested in
How can is solve this
Tcecarenko [31]

Answer:

hi, what number are u asking us to solve?

6 0
3 years ago
Christine sleep form 11pm until 9am what fraction of a day does Christine sleep​
Natalija [7]

10/24 = 5/12 = 2.5/6

take it as u will

7 0
3 years ago
Help a chick out only if u know what u doing
Monica [59]

Answer:

for 12:00 1 for 1:00 2

Step-by-step explanation:

this is a pattern where each number multiplies itself by 2 making 12:00 and 1:00 pm 1 and 2

edit: is it right? if it is, may I have brainliest?

8 0
3 years ago
Which equation is not a linear function? Select each correct function.
tino4ka555 [31]

\text{The point-slope form of a linear function:}

y = mx + b


y=xy+2\qquad\text{subtract xy from both sides}\\\\y-xy=2\qquad\text{distributive}\\\\(1-x)y=2\qquad\text{divide both sides by (1 - x)}\\\\y=\dfrac{2}{1-x}\to\text{nonlinear}\\---------------------------\\y=x+2y\qquad\text{subtract 2y from both sides}\\\\-y=x\qquad\text{change the signs}\\\\y=-x\to\text{linear}\\-----------------------------\\y=-x-2y\qquad\text{add 2y to both sides}\\\\3y=-x\qquad\text{divide both sides by 3}\\\\y=-\dfrac{1}{3}x\to\text{linear}\\-----------------------------

y=x-y+2\qquad\text{add y to both sides}\\\\2y=x+2\qquad\text{divide both sides by 2}\\\\y=\dfrac{1}{2}x+1\to\text{linear}\\----------------------------\\y=x^2-2+2y\qquad\text{subtract 2y from both sides}\\\\-y=x^2-2\qquad\text{change the signs}\\\\y=-x^2+2\to\text{nonlinear}\\----------------------------\\y=-y+2-2x\qquad\text{add y to both sides}\\\\2y=2-2x\qquad\text{divide both sides by 2}\\\\y=-x+1\to\text{linear}

7 0
4 years ago
What is the solution to the equation x + 7 = 63? 9, 16, 56, 70.​
luda_lava [24]

Hello!

Answer:

x = 56

Step-by-step explanation:

x=63−7

x = 56

Hope this helps!

3 0
3 years ago
Other questions:
  • A charity organization had a fundraiser where each ticket was sold for a fixed price of \$70$70dollar sign, 70. They had to sell
    8·1 answer
  • 452 divided by 17,628
    8·1 answer
  • Each pair of figure is similar find the missing side
    6·1 answer
  • Find the distance between points P(3,2) and Q(6,6)to the nearest tenth
    9·1 answer
  • A system of equations and its solution are given below. System A 5x-y= -11 3x -2y= -8 solution: (-21)
    14·1 answer
  • Points T, R, and P, define _____Points B, A, and E are:
    12·1 answer
  • Camillo needs 2,400 oz of jelly for the food challenge. If 48 oz of jelly cost $3.84, how much will Camillo spend on jelly? Expl
    13·2 answers
  • Which expression is equivalent to
    9·2 answers
  • Hey!
    8·2 answers
  • The science teacher needs 32 hand lenses. She already has 24. Hand lenses come in packages of 8. How many packages should she or
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!