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
vladimir1956 [14]
3 years ago
5

The heights (in inches) and pulse rates (in beats per minute) for a sample of 40 women were measured. Using technology with the

paired height/pulse data, the linear correlation coefficient is found to be 0.202. Assuming a 0.01 level of significance, find the critical value. Is there sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women?
Mathematics
1 answer:
Viktor [21]3 years ago
7 0

Answer:

There is not sufficient evidence  to support the claim that there is a linear correlation between the heights and pulse rates of women

Step-by-step explanation:

The correlation coefficient between the variables h(height in inches) and pulse rates (in beats per minute) is 0.202

Sample size n=40

Level of significane alpha = 0.01

Create null and alternate hypothesis as:

H0: r=0

Ha: r not equal 0

(Two tailed test at 1% significance level)

Sample r = 0.202

r difference = 0.202

test statistic t = \frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{0.202(\sqrt{38} )}{\sqrt{0.9592} } \\=\frac{1.25}{0.9794} \\=1.271

df =n-2 =38

t critical value for 0.01 and df =38 is 2.704

Since our test statistic lies below 2.704, we accept null hypothesis

There is not sufficient evidence  to support the claim that there is a linear correlation between the heights and pulse rates of women

You might be interested in
HELP ME WITH THIS EQUATION! 11 = y – 6 *
Blizzard [7]

Answer:

Step-by-step explanation:

here you go mate'

step 1

11 = y-6  equation

step 2

11+6=y-6+6  add 6 to the sides

answer

y=17

can i get brainliest if you dont mind?

8 0
2 years ago
Read 2 more answers
Find the equation of the line passing through points (-1,-6) and (3,5)
Phoenix [80]

Answer:

y=11/4x-13/4

Step-by-step explanation:

Use the slope formula and slope-intercept form y=mx+b to find the equation.

7 0
2 years ago
The function f(x) = –x2 − 2x + 15 is shown on the graph. What are the domain and range of the function?
Phantasy [73]

Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.

Domain: ( − ∞ , ∞ ) , { x | x ∈ R }

Range: ( − ∞ , 16 ] , { y | y ≤ 16 }

3 0
2 years ago
Suppose you roll a special 31-sided die. What is the probability that one of the following numbers is rolled?
madreJ [45]

Answer:

34.78 is the answer to ur question

4 0
2 years ago
Determine the product. 800.5 x (2x10^6)
zhenek [66]
D. 10^6 = 1000000 x 2 = 2000000 x 800.5 = 1601000000 = 1.601 x 10^9
6 0
2 years ago
Other questions:
  • Express 3.01 as a mixed number
    6·1 answer
  • What are the greatest common divisors of these pairs of integers?a. 3⁷. 5³. 7³,2ⁱⁱ.3⁵.5⁹b. 11.13.17, 2⁹.3⁷.5⁵.7³c. 23³ⁱ,23ⁱ⁷d. 4
    11·1 answer
  • What do you think about geometry?
    9·1 answer
  • Ben states that 3/7 + 1/2 = 4/9. jada says tat can't be true, because 4/9 > 1/2. is she correct? explain.
    9·1 answer
  • If the annual interest rate is 6%, and interest is compounded monthly, the interest rate per period is: ____%
    7·1 answer
  • Three triangles are shown on the centimetre grid. A, B, C. A\ Which triangle has the largest area? B\ Work out the area of this
    11·2 answers
  • 2.
    12·1 answer
  • HELP i neee help i dont understand
    7·1 answer
  • 3x + 2y = 14. X + y = 5. Work put the values of x and y
    13·1 answer
  • Quadrilateral PQRS is inscribed in a
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!