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
ElenaW [278]
1 year ago
5

The nutrition supervisor for a school district is considering adding a baked potato bar to the lunch for all the high school caf

eterias. He wants to determine if there is a difference in the proportion of students who would purchase from the potato bar for two high schools, East and West. The cafeteria manager at each high school randomly surveys 90 students. At East High School, 63 of the students said they would purchase the potato bar on that day.
At West High School, 45 students said they would. Based on the 99% confidence interval, (0.02, 0.38), is there convincing evidence of a difference in the proportions of students who would purchase from the potato bar between East and West High Schools?

O There is convincing evidence because the entire interval is above 0.

O There is convincing evidence because the sample proportions are different at each high school.

O There is not convincing evidence because another interval using a lower level of confidence might contain 0.

O There is not convincing evidence because the entire student body should have been asked.
Mathematics
1 answer:
Nimfa-mama [501]1 year ago
3 0

Using the confidence interval, it is found that the correct option is:

There is convincing evidence because the entire interval is above 0.

<h3>When does a confidence interval for the difference of proportions gives convincing evidence that there is a difference?</h3>

It gives convincing evidence when 0 is not part of the confidence interval.

In this problem, the interval is (0.02, 0.38), which does not contain 0, hence the correct option is:

There is convincing evidence because the entire interval is above 0.

More can be learned about confidence intervals at brainly.com/question/25890103

You might be interested in
Evaluate 33/5 - 1/10
azamat

Answer:

\large\boxed{\dfrac{13}{2}=6\dfrac{1}{2}=6.5}

Step-by-step explanation:

We have the different denominators.

The common denominator is 10.

\dfrac{33}{5}=\dfrac{33\cdot2}{5\cdot2}=\dfrac{66}{10}

We can subtract these fractions now.

\dfrac{33}{5}-\dfrac{1}{10}=\dfrac{66}{10}-\dfrac{1}{10}=\dfrac{66-1}{10}=\dfrac{65:5}{10:5}=\dfrac{13}{2}\\\\\dfrac{13}{2}=\dfrac{12+1}{2}=6\dfrac{1}{2}

3 0
3 years ago
Read 2 more answers
13. Find the value of x.<br> 140°<br> 136°<br> х<br> 148°<br> 142°<br> 150°
garik1379 [7]

Answer:

sum of interior angle of heptagon is 900°.

140°+148°+136°+150°+142°+90°+x=900°

806+x=900°

x=900°-806°

x=94°

8 0
3 years ago
64 as a mixed number
Kaylis [27]
I'm perdy sure it's 64/1 but yk it could be something else XD :D good luck!

6 0
2 years ago
Solve the following problems:
siniylev [52]

Answer:

  DB = 13 cm

Step-by-step explanation:

ΔCAB ≅ ΔDBA by ASA, so CA ≅ DB by CPCTC.

CA = 13 cm, so DB = 13 cm.

8 0
3 years ago
Read 2 more answers
Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea
hjlf

Answer:

120 into a third and divide and the answer

Step-by-step explanation:

160

7 0
3 years ago
Other questions:
  • What inequality describes the weight range of a single nickel
    13·1 answer
  • Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find the P(X = 3) using Excel. Round a
    12·1 answer
  • How can polygons be considered a subcategory of two-dimensional figures? PLEASE HELP THIS IS DUE TOMORROW!!!!!!!!!
    14·1 answer
  • How do you simplify 30/20???<br><br> PLEASE<br><br> HELP
    12·1 answer
  • Suppose the mean wait-time for a telephone reservation agent at a large airline is 40 seconds. A manager with the airline is con
    13·1 answer
  • Five less than two times a number is less than three times the number
    10·1 answer
  • HELP ME HELP ME please !!! 10 points
    10·2 answers
  • A research group at Nike decides to survey NCSU students for their preferences in clothing brands. They divide all students into
    12·1 answer
  • What inverse operation should be used to isolate the variable in the equation j ÷ 12 = 50?
    10·2 answers
  • Help I don’t get this
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!