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
Wittaler [7]
3 years ago
15

A government health official is interested in whether there has been a statistically significant decrease in teen smoking rates.

In 2013, 8.4 percent of 12th graders had used tobacco in the past 30 days. With this data, we test the following hypotheses at the 5% significance level.
The health official surveys 200 randomly selected 12th graders and finds that 14 of them have used tobacco in the past 30 days.
H0: The percentage of 12th graders who have smoked in the past 30 days is equal to 8.4%.
Ha: The percentage of 12th graders who have smoked in the past 30 days is greater than 8.4%.
The p-value is 0.09. Which conclusion is correct?
A. Accept H0.
B. Fail to reject H0.
C. Reject H0.
Mathematics
1 answer:
Nostrana [21]3 years ago
7 0

Answer: B

Step-by-step explanation:

The p-value is greater than the significance level (0.09 > 0.05), so we "fail to reject" H0.

The p-value and significance level are provided from the questions .

General rule of P value :  When a P value is less than or equal to the significance level, you reject the null hypothesis.

You might be interested in
Results of a poll stated that 40% of U.S. adults identify as Republican, and you want to test the claim at alpha = 0.05. What le
Nookie1986 [14]

Answer:

The confidence level is 95% or 0.95.

Step-by-step explanation:

Consider the provided information.

Results of a poll stated that 40% of U.S.

If you want to test the claim at alpha = 0.05.

As we know:

Confidence level = 1 - significance level (\alpha)

Confidence level = 1 - 0.05

Confidence level  = 0.95

Therefore, the confidence level is 95% or 0.95.

4 0
4 years ago
A washer and a dryer cost $763 combined. The washer costs $63 more than the dryer. What is the cost of the dryer?
Leni [432]

Answer:

$350

Step-by-step explanation:

w +d = 763

d + 63 = w

-w + d = -63

2d = 700

d = 350

3 0
3 years ago
Identify the translation of the figure with the vertices F(4,0), G(1,3), H(2,6) and I(4,2), along the vector ⟨−4,−4⟩. HELP PLEAS
mr Goodwill [35]

Answer:

  the last choice shown here: F'(0, -4), G'(-3, -1), H'(-2, 2), I'(0, -2)

Step-by-step explanation:

The translation vector tells you that the new coordinates are found by adding -4 to each of the old coordinates. When you realize that the answer choices differ in their values for H' and I', you can conclude that you only need to find one of those to determine the correct answer.

  H' = H + (-4, -4) = (2-4, 6-4) = (-2, 2) . . . corresponds to the last choice shown

_____

When you subtract 4 from each of the coordinates of the other points, you find they also match the last answer selection.

4 0
3 years ago
Which is the graph of y= 3^x + 1 - 2 HELP PLEASE
alexgriva [62]

Answer:

Step-by-step explanation:

6 0
3 years ago
4 tomatoes cost $3.40. what is the unit rate
LiRa [457]
The unit rate should be 0.85 cents since, 3.40 divided by 4 equals 0.85. Hope this helps and have a nice day!
3 0
4 years ago
Other questions:
  • Is the equation a proportuioanl relationship? x= 2y
    7·1 answer
  • Please give me answer
    14·1 answer
  • What is the length of segment FG?
    10·2 answers
  • Which segment is parallel to AD
    10·2 answers
  • Solve for x in the equation x squared + 2 x + 1 = 17.
    12·1 answer
  • What is the antecedent for the pronoun "they" in the following passage?
    12·2 answers
  • An expression that equivalent to 12x + 8
    15·2 answers
  • What angle measures have tangent 1
    6·1 answer
  • Negative 3 times negative x equals?
    15·1 answer
  • A dog kennel charges a daily boarding rate as shown on the graph. use the information to mark 5-8 as true or false. if false, re
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!