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
Lera25 [3.4K]
3 years ago
10

A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 404 gram setting. It

is believed that the machine is underfilling the bags. A 27 bag sample had a mean of 402 grams with a variance of 676. A level of significance of 0.1 will be used. Assume the population distribution is approximately normal. Is there sufficient evidence to support the claim that the bags are underfilled?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

There is no sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

We are given;

n = 27 bags

Sample mean;X = 402 gram

Population mean;μ = 404 gram

Variance = 676

We know that, standard deviation(σ) = √variance

Thus;

σ = √676

σ = 26

The hypotheses are;

Null hypothesis; H0: μ = 404

Alternative hypothesis; HA: μ < 404

Let's find the z-score from the formula;

z = (X - μ)/(√σ/n)

z = (402 - 404)/√(26/27)

z = -2.04

From the z-distribution table attached, we have a p-value of 0.02068

This is less than the significance value of 0.01 and thus we will reject the null hypothesis and conclude that there is no sufficient evidence to support the claim that the bags are underfilled

You might be interested in
Solve for x ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎ ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎​
Pie

Answer:

18.46

Step-by-step explanation:

find the area using SSS,  then solve for height

3 0
2 years ago
The expression 2y+3y2−5y+y2simplifies to 4y2−3y <br> true or false
Mumz [18]

Answer:

False?

Step-by-step explanation:

I'm pretty sure it's false because wouldn't it simplify to 5y? Sorry if I'm wrong. :)

8 0
3 years ago
If Stacey bought 32 ounces of grapes, how many pounds did she buy? (There are 16 ounces in one pound.)
mixer [17]

Answer:

2 pounds

Step-by-step explanation:

32/16=2

7 0
2 years ago
Read 2 more answers
For each equation below find y if x = 2
Charra [1.4K]
A.
y = 7 - |x| = 7 - 2 = 5

b.
y = x² - 1 = 2² - 1 = 4 - 1 = 3

c.
y = √(x + 14) = √(2 + 14) = √16 = 4
6 0
3 years ago
Read 2 more answers
Which of the following is the y-intercept of the line whose equation is 7y-42×+7=0?​
timama [110]

Answer:

7 is the y intercept

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Un = 5 x 21<br> What is the answer to this problem?
    13·1 answer
  • Evaluate f(8) =(8-5)2 for f(8)<br> X=8
    5·1 answer
  • Find the value of y. Express in simplest radical form.
    5·1 answer
  • 5) h(x) = 2x + 4; Find h(-3)
    7·1 answer
  • Solve the equation E = IR for I
    10·1 answer
  • If a=3 and b=8 what is c
    6·1 answer
  • What is <br> 2 (3x+7) = 4
    7·2 answers
  • A circle is placed in a square with a side length of 12ft, as shown below. Find the area of the shaded region.
    5·1 answer
  • The graph at the right shows the relationship between rainfall
    6·1 answer
  • 6x+7=-5 i got it wrong
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!