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
tia_tia [17]
1 year ago
6

Several years ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women w

ho are 20 years of age or older today results in a mean height of 64.1 inches. (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. (b) Suppose the P-value for this test is 0.06. Explain what this value represents. (c) Write a conclusion for this hypothesis test assuming an a
Mathematics
1 answer:
VikaD [51]1 year ago
7 0

Since the p - value is less than significance level . So, we will accept the null hypothesis.

​(a) State the appropriate null and alternative hypotheses to assess whether women are taller today.

Definition of null hypothesis : The null hypothesis attempts to show that no variation exists between variables or that a single variable is no different than its mean. it is denoted

Alternative Hypothesis : In statistical hypothesis testing, the alternative hypothesis is a position that states something is happening, a new theory is true instead of an old one (null hypothesis).

We are given that The mean height of women 20 years of age or older was 63.7 inches.

So, null hypothesis :  H₀ : μ = 63.7

Alternative Hypothesis :  H₁ : μ > 63.7

b)The​ P-value for this test is 0.06.

The p-value represents the probability of getting a sample mean height of 20 years old women is  64.1 inches.

c) Write a conclusion for this hypothesis test assuming an alpha equals 0.10 level of significance.

p- value = 0.06

Since the p - value is less .

So, we will accept the null hypothesis

So,  

Hence The mean height is 63.7 inches

To learn more about hypothesis testing from the given link

brainly.com/question/12976831

#SPJ4

You might be interested in
Please help, marking brainliest for the best answer. Serious answers only please
Marina CMI [18]
Consecutive interiors this should be the right answer if not I’m sorry
5 0
3 years ago
Read 2 more answers
Please help with this question. Thank you.
podryga [215]

Answer:

t = 4

Step-by-step explanation:

Substitute the variables with the information provided.

205 = 100 + 12(6) + 5(t) + 7(4) + 5(5) - 8(5)

Simplify

205 = 100 + 72 + 5t + 28 + 25 - 40

20 = 5t

t = 4

5 0
3 years ago
The ratio of men to women in a movie theater is 3:5. As two more men and one more woman walk in, the ratio of men to women becom
34kurt

Answer:

C. 20

Step-by-step explanation:

Let's say M is the original number of men and W is the original number of women.

M / W = 3 / 5

(M+2) / (W+1) = 2 / 3

Let's cross multiply both equations:

5M = 3W

3(M+2) = 2(W+1)

Let's simplify the second equation:

3M + 6 = 2W + 2

3M + 4 = 2W

From the first equation:

M = 3/5 W

Substitute:

3 (3/5 W) + 4 = 2W

9/5 W + 4 = 2W

4 = 1/5 W

W = 20

There were originally 20 women.

Let's check our answer.  That would mean that M = 3/5 W = 12.

After 2 men walk in and 1 woman, W = 21 and M = 14, so 14/21 = 2/3.  Looks like the answer is correct!

Answer C.

7 0
4 years ago
Just do these two problems for me and I’ll be so happy
sveticcg [70]
5. y = x + 7
6. y = -x + 1
4 0
2 years ago
True or false. A binomial,where both terms are perfect squares, will always factor
valkas [14]

Answer:true

Step-by-step explanation:

8 0
4 years ago
Other questions:
  • Archaeology students are constructing a replica of the Great Pyramid of Giza that they will then fill with sand. The replica is
    12·1 answer
  • The center pole of a tent is 8 feet long, and a side of the tent is 12 feet long as shown in the diagram below.
    14·1 answer
  • FAST 20 POINTS PLEASE HELP WILL GIVE BRAINIEST ANSWER What is the solution of the system of equations? {3x−1/2y=−7/2 x+2y=1 Ente
    12·1 answer
  • What is a two step equation that has a solution of -3
    9·1 answer
  • Find a slope for y=1.5x+1
    7·2 answers
  • How much is 3ft in a 1 yrd
    12·1 answer
  • Which represents the solution set to the inequality 5.1(3 + 2.2x) > –14.25 – 6(1.7x + 4)? ​
    6·2 answers
  • Problem Safety standards require a pool to add 3 chlorine tablets to every 2,000 gallons of water. Today, the lifeguards at Park
    11·2 answers
  • Find the coordinates of the midpoint of line segment lb if l (8, 5) and b (-6, 2).
    8·1 answer
  • Help me please I have no idea
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!