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
vazorg [7]
3 years ago
5

It has been hypothesized that allergies result from a lack of early childhood exposure to antigens. If this hypothesis were true

, then we would expect allergies to be more common in very hygienic households with low levels of bacteria and other infectious agents. To test this theory, researchers at the University of Colorado sampled the houses of 61 children 9-24 months old and recorded two variables: (1) whether the child tested positive for allergies and (2) the concentration of bacterial endotoxin in the house dust.
Required:
a. Plot a histogram of bacterial endotoxin levels.
b. Test whether the observed difference in endotoxin levels between the "sensitive" and normal"
Mathematics
1 answer:
skad [1K]3 years ago
4 0

Answer:

[a]. check attachment.

[b]. It can not be said that the difference is ascribed to chance as P-value = 0.001 which is less than <<0.05. That is  P-value = 0.001 <<0.05.

Step-by-step explanation:

Without mincing words let's dive straight into the solution to the question above.

[a]. The drawing showing the histogram of bacterial endotoxin levels is given in the attached picture.

KINDLY NOTE: The data is right-skewed.

[b].  ALLERGIC             MEAN        SE MEAN         STDEV           N

      FALSE                     1510             251                  1789            251

        TRUE                    530              109                 343               10

False - true = difference in a.

Hence, 80 = estimated difference.

For the difference, 95% CI = (434, 1527).

DF = 58, P-value = 0.001, and the T value = 3.59.

Therefore, It can not be said that the difference is ascribed to chance as P-value = 0.001 which is less than <<0.05. That is  P-value = 0.001 <<0.05.

You might be interested in
6. Richy has a bag of marbles. He gave 5/12 of
Tems11 [23]

Answer:

7/12

Step-by-step explanation:

12/12-5/12=7/12

7 0
3 years ago
A cube has and edge length of 2 centimeters. What is it’s volume, in cubic centimeters?
77julia77 [94]

Answer:

8

Step-by-step explanation:

2x2 is 4 and x 2 is 8. I think im right?

5 0
3 years ago
0.402,0.42,0375,12<br> Order from least yo greatest
Neko [114]

Answer:

0.402, 0.42, 12, 375

6 0
3 years ago
How to make this y=21x-7 into standard form
Galina-37 [17]
The standard form is 21x-y-7=0
6 0
3 years ago
walker is reading a book that is 792 pages. He reads 15 pages a day during the week, and 25 pages a day during the weekend. Afte
Gnesinka [82]

Answer: The total number of pages does Walker still have left to read before he finishes the book is 167 and this can be determined by using the arithmetic operations.

Step-by-step explanation: edge 2021!

5 0
2 years ago
Read 2 more answers
Other questions:
  • Sarah Simpson is insured for bodily injury in the amount of 10/20. She is at fault in an accident in which Fred Vail ns injured.
    11·2 answers
  • What is the square root of -1
    11·1 answer
  • How can you apply the remainder theorom
    13·1 answer
  • How did Samual Slater and Francis Cabot Lowell change early American industry
    12·1 answer
  • Please help...I can't really wrap my brain around this...
    5·1 answer
  • As part of your retirement plan, you want to set up an annuity in which a regular payment of $35,000 is made at the end of each
    8·1 answer
  • Really need help on this problem
    11·1 answer
  • Please help this is due today!!
    14·1 answer
  • Calculate the area of a circle with the radius of 2cm. Pie=3
    14·2 answers
  • Consider the linear function f(x)=4x-5 Find the values of x for which f(x)=3,f(x)=5,f(x)=-3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!