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
grin007 [14]
3 years ago
8

An apple farm claims that the average weight of all their apples is 8oz. A sample of 20 apples were picked that had a mean of 7.

77oz and standard deviation of 0.95oz. We want to test whether the mean apple weight is different from 8oz. Assume that the apple weights are normally distributed.
Mathematics
1 answer:
Nimfa-mama [501]3 years ago
5 0

Answer:

The mean apple weight is different from 8oz

Step-by-step explanation:

Claim : An apple farm claims that the average weight of all their apples is 8oz.

H_0:\mu \neq 8\\H_a:\mu = 8

n = 20

Standard deviation =s = 0.95

Since n < 30

So we will use t-test

x = 7.77

t =\frac{x-\mu}{\frac{s}{\sqrt{n}}}

Substitute the values :

t =\frac{7.77-8}{\frac{0.95}{\sqrt{20}}}

t =−1.0827

Since we are not given the significance level

So, we will take 5%

So,α = 0.05

Degree of freedom = df = n-1 = 20-1 = 19

So, using t table

t_{\frac{\alpha}{2} , df}=2.093

Since t critical > t statistic

So, we accept the null hypothesis.

So, The mean apple weight is different from 8oz

You might be interested in
Three consecutive integers can be represented by n, n + 1, and n + 2. if the seum of three consecutive integers is 57, what are
Helen [10]
Sum means add
sum of the 3 is
n+n+1+n+2

it add to 57
n+n+1+n+2=57
3n+3=57
minus 3 both sides
3n=54
divide both sides by 3
n=15
n+1=16
n+2=17

the integers are 15,16, and 17
8 0
3 years ago
Variable a is 4 more than variable b. Variable a is also 1 less than b. Which of the following pairs of equations best models th
Elis [28]
B=a+4 that is what the answer will be.
4 0
3 years ago
Please help me.... I didn't understand the question
ira [324]
19 squares are or shaded so it’s 19%
7 0
3 years ago
Read 2 more answers
I WILL REPORT IF IT'S A LINK
Anit [1.1K]

Answer:

a) There will be approximately a water depth of 7.5 meters after 3h

b) Approximately 2.5 hours have passed when there is 8 m of water in the tank.

Step-by-step explanation:

a) Look for the y-value when the x-value is 3.

b) Look for the x-value when the y-value is 8.

*The y-axis is the depth (m), and the x-axis is the time (h).

7 0
3 years ago
What is the slope of 3x-4y=3
aleksley [76]
Let's solve for x.<span><span><span>3x</span>−<span>4y</span></span>=3</span>Step 1: Add 4y to both sides.<span><span><span><span>3x</span>−<span>4y</span></span>+<span>4y</span></span>=<span>3+<span>4y</span></span></span><span><span>3x</span>=<span><span>4y</span>+3</span></span>Step 2: Divide both sides by 3.<span><span><span>3x</span>3</span>=<span><span><span>4y</span>+3</span>3</span></span><span>x=<span><span><span>43</span>y</span>+1</span></span>Answer:<span>x=<span><span><span>43</span>y</span>+<span>1</span></span></span>
7 0
3 years ago
Other questions:
  • What is the answer to these question<br> 1:1/3y-1/2=5<br> 2:5n+1/2=1/6
    7·1 answer
  • 1×1+9×(1/100)+1 ×(1/1,000)
    15·2 answers
  • Which interval on the graph could be described as linear increasing? <br><br> A<br> B<br> C<br> D
    8·2 answers
  • What is the absolute value of 5.23
    10·1 answer
  • Triangle ABC is similar to Triangle QRS.
    6·2 answers
  • (9x+5)-(6x-8) please help.​
    6·2 answers
  • The point g (2,2) is translated 3units to the right and 4units up what are the coordinates of this resulting point, g?
    15·1 answer
  • Find an equation for the nth term of the arithmetic sequence.<br> -13, -8, -3, 2, ...
    13·1 answer
  • What tip did you leave if your meal cost 27 and you paid a total of 36
    5·2 answers
  • Evaluate the expression for x = 3 and y = 6.<br><br> 5(x2 + y) + y2
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!