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
Alenkinab [10]
3 years ago
15

You want to test the claim that the average age of students at Gorka College is greater than the average age of students at Yapo

ah College. You take a simple random sample of 53 people from Gorka and compute an average age of 21.2 (years) and a standard deviation of 1.1. Then you take a simple random sample of 46 students from Yapoah College and compute an average age of 20.7 and a standard deviation of 1.2.
Compute the t-statistic for testing the alternative hypothesis that the average age of Gorka students is greater than the average age of Yapoah students (set things up so that t is positive).
What are the degrees of freedom (using the conservative method)?
What is the P-value?
Is there significant evidence at the 0.05 level to support the hypothesis that the average age of Gorka students is higher than for Yapoah?
Mathematics
1 answer:
777dan777 [17]3 years ago
7 0

Answer:

Kindly check explanation

Step-by-step explanation:

The hypothesis :

H0 : μ1 = μ2

H1 : μ1 > μ2

Given :

x1 = 21.1 ; n1 = 53 ; s1 = 1.1

x2 = 20.7 ; n2 = 46 ; s2 = 1.2

The test statistic :

(x1 - x2) / √[(s1²/n1 + s2²/n2)]

(21.1 - 20.7) / √[(1.1²/53 + 1.2²/46)]

0.4 / 0.2326682

Test statistic = 1.719

The degree of freedom using the conservative method :

Comparing :

Degree of freedom = n - 1

Degree of freedom 1 = 53 - 1 = 52

Degree of freedom 2 = 46 - 1 = 45

Smaller degree of freedom is chosen ;

The Pvalue from Test statistic, using df = 45

Pvalue = 0.0462

Pvalue < α ; Hence, there is significant evidence to conclude that average age of Gorka student is higher than Yaphoa.

You might be interested in
Identify which angle it is
NISA [10]

Answer:

a. acute

b. right angle

c. acute

d. right angle

19. equilateral triangle

7 0
3 years ago
What is 21/56 simplified
lozanna [386]
21=3\cdot7\\56=8\cdot7\\\\\frac{21}{56}=\frac{3\cdot\not7^1}{8\cdot\not7_1}=\boxed{\frac{3}{8}}
3 0
3 years ago
Read 2 more answers
Manny buys four boxes of straws for his restaurant there are 500 straws in each box how many straws does he buy
Karolina [17]

Answer:

2000 straws

Step-by-step explanation:

4 × 500 = 2000

4 0
3 years ago
Write a number sentence to compare 7.17 and 7.170
yulyashka [42]
Both of these values are the same, so the number sentence would state:

7.17 = 7.170

You can place any number of zeros to the very end on the right side (when there is a decimal point) without changing the value of the number.

7.1700000 = 7.17 also
5 0
3 years ago
0 98
Brrunno [24]
Exponential would be the correct answer I believe...
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression is equivalent to 1/3y?
    12·2 answers
  • What is the unit rate if 12 pairs of socks sell for 5.79?
    15·2 answers
  • The sum of two numbers is negative two. their difference is four. what are the numbers?
    6·1 answer
  • Y = x +4<br> 3x + y = 16
    7·1 answer
  • I need help asap please i will mark you brainlist
    11·1 answer
  • Can someone Pease help me with this question
    7·2 answers
  • Use the GCF and the distributive Property to find the sum of 29 + 91
    10·1 answer
  • Write the equation of the line in fully simplified slope-intercept form.
    5·1 answer
  • What is the best approximation for the area of this circle? Use 3. 14 to approximate pi. 18. 8 ft² 37. 7 ft² 75. 4 ft² 113. 0 ft
    14·1 answer
  • (18 ÷ 2) × (56 ÷ 7) =
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!