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
Vesna [10]
3 years ago
9

According to the Centers for Disease Control and Prevention, the proportion of U.S. adults age 25 or older who smoke is .22. A r

esearcher suspects that the rate is lower among U.S. adults 25 or older who have a bachelor's degree or higher education level. What is the null hypothesis in this case?
a. The proportion of smokers among U.S. adults 25 or older who have a bachelor's degree or higher is less than 0.22.
b. The proportion of smokers among U.S. adults 25 or older who have a bachelor's degree or higher is 0.22.
c. The proportion of smokers among U.S. adults 25 or older who have a bachelor's degree or higher is not 0.22.
d. There is no relationship between education level and smoking habits.
Mathematics
2 answers:
OleMash [197]3 years ago
8 0

Answer: d. There is no relationship between education level and smoking habits.

Step-by-step explanation:

The null hypothesis is the affirmation that two parameters or phenomena do not have a relation between them.

Here the parameters are smoking and having a bachelor's degree or higher education.

Then the null hypothesis says that those two things do not have any relation, this would imply that the probability of being a smoker does not depend on having a degree or not.

Then the correct option is d "There is no relationship between education level and smoking habits."

NARA [144]3 years ago
6 0

Answer:

b. The proportion of smokers among U.S. adults 25 or older who have a bachelor's degree or higher is 0.22.

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean.

While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

Therefore, for the case above, the null hypothesis is that the proportion of smokers among U.S. adults 25 or older who have a bachelor's degree or higher is 0.22.

You might be interested in
I need the answer ASAP.
Vladimir79 [104]
Angle EGD = x (vert. opp. angles)
30 ° + 90 ° + x = 180 ° (adj. angles on st. line)
x = 60
5 0
3 years ago
Read 2 more answers
A is a prorportional three dimensional model of an object
klio [65]
Scale factor mark brainliest plz
5 0
3 years ago
who does the number, of zeros in the product of 8 and 5000 compara to the number of zeros in the factors ? explain.
mezya [45]
If one of the numbers we multiply (factors) has zeros at the end, and the other isn't a fraction: all those zeros will stay in the product.

But there might be additional zeros if the other numbers  in the factors (the numbers which aren't 0) mupliply  to  "end" in zero and this is the case here:

8*5=40.

so the product will be 40 and the zeros of the 5000:

40 000

the number of zeros in the product will be bigger than the number of zeros in the factors if the non-zero parts of the fractions multiply to a number with 0 at the end.
4 0
3 years ago
Suppose to travel 162 miles in 3 hours .use the formula d=st to find the average speed
Umnica [9.8K]

Distance = Speed x time = 162 x 3 = 486 miles/hour



Answer: 486 miles/hour

6 0
3 years ago
Read 2 more answers
Last year, 140 people in a community had cell phones. This year, the number of people in the community with cellphones has incre
kiruha [24]

a 65%

b 91

c 231

now im typing so it will let me answer

ssssssssssssssssssssssssssss

5 0
2 years ago
Other questions:
  • Desperately need help…Please!!!
    12·1 answer
  • ANSWER ASAP!! One bottle of orange juice holds 16 ounces. Adam, Mateo, and Tim will share a bottle of orange juice equally. How
    5·2 answers
  • What does a variable allow you to do that you couldn't do before
    14·1 answer
  • If a number is divisible by four then it is divisible by eight<br><br> 12 <br> 16<br> 24<br> 48
    14·2 answers
  • Natasha had d dollars. She bought 2 ice cream cones which cost x dollars each. How much money does she have left?
    8·1 answer
  • 1.What is the area of this parallelogram?
    13·1 answer
  • M is the midpoint of . The coordinates of A are (2,3) and the coordinates of M are (4.5,6). Find the coordinates of B.
    5·1 answer
  • Pls pls pls pls pls pls pls pls HELP
    9·2 answers
  • In an isosceles triangle the length of the base is 10 cm
    10·1 answer
  • PLEASE HELP!!!!!!!!!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!