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
sasho [114]
3 years ago
15

A particular paper included the accompanying data on the tar level of cigarettes smoked for a sample of male smokers who subsequ

ently died of lung cancer.
Assume it is reasonable to regard the sample as representative of male smokers who die of lung cancer.

Is there convincing evidence that the proportion of male smoker lung cancer deaths is not the same for the four given tar level categories at the Alpha = .05 level? (Use 2 decimal places.)

Tar Level Frequency

a. 0-7 107

b. 8-14 375

c. 15-21 500

d. 22 181

x2 =
Mathematics
1 answer:
Dafna1 [17]3 years ago
5 0

Answer:

Check the explanation

Step-by-step explanation:

H_0:proportion of male smoker lung deaths is same for the four given tar level categories.

H_1:proportion of male smoker lung deaths is not the same for the four given tar level categories.

Expected frequency=1177/4=294.25

Tar level     Observed Freq.(O)        Expected Freq.(E)         (O-E)^2/E

0-7                         107                                   294.25                120.435

8-14                        375                                  294.25                5.643

15-21                       553                                 294.25                 227.533

>=22                       183                                  294.25                 42.061

Total=                    1177                                  1177                      395.673

Total chi square score=395.673

df=4-1=3

p-value=CHIDIST(395.673,3)<0.001

p-value<0.001,Reject null hypothesis.

There is sufficient evidence that the proportion of male smoker lung deaths is not the same for the four given tar level categories.

You might be interested in
What is 6 1/2 times -3
AleksAgata [21]

Answer:

-14.5

Step-by-step explanation:

6.5 * -3 = -14.5

- * + = -

5 0
3 years ago
Read 2 more answers
Free 11 point, take it or leave it.
tekilochka [14]

Answer:

thanks for the free points

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How do you add/subtract in scientific notation? Answer in a sentence.
Anton [14]

Answer:

With a scientific calculator

6 0
3 years ago
emily just hired a new employee to work in your bakeshop . in one hour the empolyee burned 750 choclat chip cookies . if this re
Ivan
You planned on making 5000 cookies
4 0
3 years ago
A bus travels at 10 km in 30 minutes. What is the average speed of the bus?
zhannawk [14.2K]

Answer:

20 kph

Step-by-step explanation:

Step 1:

10 : 30         Ratio

Step 2:

60 mins in hour        

Step 3:

10 : 30 = x : 60        Equation

Step 4:

30x = 600       Multiply

Step 5:

x = 600 ÷ 30         Divide

Answer:

x = 20

Hope This Helps :)

8 0
2 years ago
Other questions:
  • Rewrite y-3=3(X+1) in standard form
    15·2 answers
  • Answer this Idk what tor do
    9·1 answer
  • Couldn’t figure out 3 of my questions
    12·2 answers
  • 1/2(b-3)=5/2 solve equation plzzz
    6·1 answer
  • The output is six times the Input
    12·1 answer
  • No points no points no points
    13·2 answers
  • Help meee plzzzzzzzzz
    11·2 answers
  • 100 PTSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
    13·2 answers
  • Can somebody help me please
    9·1 answer
  • I think of a number times it by 2 and minus 2 my answer is nine
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!