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
Serggg [28]
3 years ago
15

The goal of a nutritional study was to compare the caloric intake of adolescents living in rural areas of the US with the calori

c intake of those living in urban areas. A random sample of ninth-grade students from one high school in a rural area was selected. Another random sample of ninth graders from one high school in an urban area was selected. Each student in the sample kept records of all the food he or she consumed in one day. The back to back stemplot displays the number of calories of food consumed per kilogram of body weight for each student on that day.
a. Write a few sentences comparing the distribution of the daily caloric intake of 9th-grade students in one rural high school with the distribution of the daily caloric intake of 9th-grade students in the urban high school.
b. Is it reasonable to generalize the findings of this study to all rural and urban 9th-grade students in the US?

Mathematics
1 answer:
stiks02 [169]3 years ago
5 0

Answer:

To give more clarity to the question, lets examine the attached back-to-back stem plot.

A)

Having examined the stem plot, we can using quick calculations, summarize that:

The mean (40.45 cal/kg) and median (41 cal/kg) daily caloric intake of ninth-grade students in the rural school is higher than the corresponding measures of center, mean (32.6 cal/kg) and median (32 cal/kg), for ninth-graders in the urban school.

The median and the mean for the students in the 9th grade in the urban school is lower than that of those of their contemporaries in the rural school. The respective medians and means are stated below:

Urban 9th Grade Students

Median = 32 cal/kg

Mean = 36 cal/kg

Rural 9th Grade Students

Median = 41 cal/kg

Mean = 41 cal/kg

Please note that all figures above have been approximated to the nearest whole number.

B)

It is unreasonable to generalize the findings of this study to all rural and urban 9th-grade students in the United States because the sample is too small compared to the target population size.

To allow for generalization, they would have to collect and analyze more samples say from every state within America.

Cheers!

You might be interested in
X=7 and y=-2x+5 <br>help!
rusak2 [61]

If x = 7 you substitute all the x in the equation by 7:

y = -2(7) + 5
y = -14 + 5
y = -9


Hope it helped,

Happy homework/ study/ exam!

4 0
3 years ago
Triangle PQR is rotated 180° clockwise about point M. The image of point P is P' and the image of point R is R'. What are the co
Mama L [17]

Answer: C= (1,2)

Step-by-step explanation:

7 0
3 years ago
What expression simplifies to 2i ? help asap lots of points
PilotLPTM [1.2K]

Answer:

Step-by-step explanation:

First, consider the following expression.

(6x + 8) + (4x + 2)

To simplify this expression, you combine the like terms, 6x and 4x. These are like terms because they have the same variable with the same exponents. Similarly, 8 and 2 are like terms because they are both constants, with no variables.

(6x + 8) + (4x + 2) = 10x + 10

5 0
2 years ago
Read 2 more answers
50% of 30, hurry &lt;3<br> its saying my question is too short so ignore what im saying rn
9966 [12]

Answer:

The answer is 15

Step-by-step explanation:

50% of 30

30 × 50 ÷ 100 = 1500/100 = 15

Thus, The answer is 15

<u>-TheUnknownScientist</u><u> 72</u>

3 0
2 years ago
Read 2 more answers
A customer purchased a total of 23 hamburgers and chicken sandwiches. Each hamburger costs $3.50 and each chicken sandwich costs
Oliga [24]

Answer:

25 hamburgers

88.50/3.50

Step-by-step explanation:

hope this helps

mark me brainly

thanks for the points

anddd

sparkles and love

☆*: .。. o(≧▽≦)o .。.:*☆

3 0
2 years ago
Read 2 more answers
Other questions:
  • An undefined term can Be used in a theorem <br><br> Sometimes <br> Always <br> Never
    13·2 answers
  • Consist of even number between 30 and 49
    14·1 answer
  • $50 rental fee; 10% discounts
    13·1 answer
  • Roots of the quadratic equation 0=2x^2+12x-14
    13·2 answers
  • The sum of six consecutive integers is −9. What are the integers?
    9·1 answer
  • 1/2+1/4+3/4=<br> pls help this my last question on my quiz!
    14·2 answers
  • If you voted for joe bieden give me thanks and brainliest
    5·1 answer
  • Only simplify, don’t solve please. thank you!
    11·2 answers
  • What is the length, in feet, of the wire?
    8·1 answer
  • What is 9/24 inches?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!