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
Alex787 [66]
3 years ago
14

suppose that a restaurant chain claims that its bottles of ketchup contain 24 ounces of ketchup on average, with a standard devi

ation of 0.2 ounces if you took a sample of 49 bottles of ketchup, what would be the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample?
Mathematics
2 answers:
ivann1987 [24]3 years ago
8 0

Answer:

The 96% confidence interval for the mean number of ounces of ketchup per bottle in the sample is 24 ± 0.029

Step-by-step explanation:

Given

Mean, x = 24 ounces

Standard deviation, σ = 0.2 ounces

Sample Size, n = 49 bottles of ketchup

Confidence Interval of 95% (0.95)

To calculate the confidence at this level, the following steps are to be followed;

1. Calculating degree of freedom:

Degree of freedom (df) is calculated by subtracting 1 from the sample size.

df = n - 1

df = 49 - 1

df = 48

2. Subtract the confidence level from 1, then divide by two.

α = (1 – .95) / 2 = 0.025

3. Look up the answers to (1) and (2) in the t-distribution table.

For 48 degrees of freedom (df) and α = 0.025,

We get 2.0106

4. Divide sample standard deviation by the square root of sample size.

i.e σ/√n

= 0.2/√49

= 0.2/7

= 0.02857

= 0.029

5. Finally, the 95% confidence interval is calculated using the following illustration.

X ± result in step 5

Where x = 24

So, we have

24 ± 0.029

Hatshy [7]3 years ago
5 0

the answer is 24+-0.057

You might be interested in
Alice Correa bought three yards of cloth to make a dress. The cloth was on sale for $1.93 per yard.
Ray Of Light [21]
Since the unit rate is $1.93 per yard, you need to multiply the number of yards by 1.93. So 1.93 x 3 = 5.79. Next, you convert 5% to a decimal, which is 0.05. Now, multiply 5.79 by 0.05, which is about 0.29. Finally, add 0.29 to 5.79, giving you the answer of 6.08. Alice payed $6.08; D.
4 0
3 years ago
Add 238 and 12, then multiply by 3. Interpret the expression.
Volgvan

Answer:

3(238+12) is the expression

Step-by-step explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
Solve the system of equations 2x + 3y = 40 and –2x + 2y = 20.
Flura [38]
2x + 3y = 40
+
-2x + 2y = 20
___________                  Adding both equations

0x + 5y  = 60
____________


5y = 60
y = 60/5 = 12

y = 12.

Since we have gotten y =12, and the only option with that is option D.

So we don't have to solve for x.

<span>The answer is D.</span>
7 0
3 years ago
How many times can 1000 go into 50 plz answer
lesya692 [45]
50/1000 = 0.05 times is the answer
8 0
3 years ago
Read 2 more answers
. <br> Solve for the variable. Show/explain how you got your answer.<br><br><br> 2(n+5)=−2
KIM [24]

Answer:

2n+10=-2

2n=-2-10

2n= -12

N= -12/2

n=-6

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • 12. Complete the comparison: 3+7&gt;?<br> O A. 7 + 3<br> O B. 9 + 4<br> O C. 10-2<br> O D. 8 +2.
    13·2 answers
  • Solve 9x2 + 12x + 4 = 0. By using the quadratic formula
    11·2 answers
  • Plz help with this math. Can't find the area of the triangular faces.
    9·1 answer
  • Given that the minimum value is 4, find the value of k
    14·1 answer
  • If x-12√x + 36 = 0 what is the value of x A. 6 B. 6^2 C. 6^3 D. 6^4
    11·1 answer
  • A total of 60 students in Brook's school are taking a Spanish class this year. This is 25% more than the number of students who
    9·1 answer
  • Find the length of the unknown side. Round your number to the nearest tenth.
    12·1 answer
  • Two x what gets seventy
    5·1 answer
  • Solve for X ⇩ I might need some more help later.
    11·1 answer
  • Tom and Jerry both earn the same monthly salary. Each month: Tom saves 35% of his salary. Jerry spends of his salary and saves t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!