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
s344n2d4d5 [400]
3 years ago
7

​claim: the mean pulse rate​ (in beats per​ minute) of adult males is equal to 6969 bpm. for a random sample of 125125 adult​ ma

les, the mean pulse rate is 69.269.2 bpm and the standard deviation is 10.910.9 bpm. find the value of the test statistic. the value of the test statistic is nothing. ​(round to two decimal places as​ needed.)
Mathematics
1 answer:
RoseWind [281]3 years ago
4 0

Answer:

t=0.21

Step-by-step explanation:

Given  \bar x=69.2, s=10.9, n=125and a population mean \mu=69.

#We state our hypothesis as:

H_o:\mu=69\\\\H_a:\mu\neq 69

The evidence available should validate either the null or alternative hypothesis.

#We calculate the test statistic as:

t=\frac{\bar x-\mu_}{s/\sqrt{n}}\\\\\\=\frac{69.2-69}{10.9/\sqrt{125}}\\\\\\=0.2051

\approx0.21

Hence, the test statistic is t=0.21

You might be interested in
Please help and explain i will mark brainliesttt!
Art [367]
JIH= QRP
they’re the same shape.
4 0
3 years ago
Plz answer DDDDDDDDDDDDDDDDDD! using the line plot
masya89 [10]

Answer:

a. 6

b. 9

c. 4

Step-by-step explanation:

a.

Range = greatest - smallest

Range = 85 - 79

Range = 6

b.

b > 81

82, 83, 84...

3 82s

4 83s

2 85s

3 + 4 + 2 = 9

c.

b = 83

4 83s

4

6 0
3 years ago
Helpppppppppppppppppp meeeeeeeeeeeeeeeeeee
DanielleElmas [232]

The fraction computed shows that the cups of sugar that can be used based on the flour will be B. 4 1/2 cups.

<h3>How to calculate the fraction?</h3>

From the information, Jonah used 1 1/2 cups of brown sugar and 2 1/3 cups for flour.

Therefore, the cups of sugar needed will be:

= 1.5/2.33 × 7

= 4.5 = 4 1/2.

Learn more about fractions on:

brainly.com/question/78672

#SPJ1

4 0
2 years ago
The sum of two positive numbers is 5 times their difference. What is the ratio of the larger number to the smaller number?
Anna11 [10]
Let the two numbers be x and y

x + y = 5(x-y)
x + y = 5x -5y
6y = 4x
x= (6/4)y
x= (3/2)y

there the ratio is 3/2
4 0
3 years ago
Plz help me find this answer
cestrela7 [59]

Answer:

C

You have to check which of numbers is the lowest.

Cheers :D

3 0
2 years ago
Other questions:
  • Simplify the expression below -4× -(-)
    8·1 answer
  • A cylinder has a volume of 604.45 cubic centimeters. The diameter of the cylinder is 10 cm. What is the height of the cylinder?
    10·1 answer
  • two-thirds of the 27 students in the class had perfect attendance for the first half of the year. How many students had a perfec
    12·1 answer
  • write the place value of the underlined digit. round each number to the place of the underlined digit 2.348 *3 is underlined*
    5·1 answer
  • Question 1: The sum of two consecutive even integers is 70. Find the numbers. Question 1 options:
    11·1 answer
  • What is the value of the 4s in 244
    13·2 answers
  • I am a parallelogram. i have an area of 45m2. i have a base of 6 cm. what is my height?
    9·2 answers
  • Simplify the fraction.
    13·2 answers
  • 3. Solve for y: -5x + 2y = 14
    11·2 answers
  • Write a one step equation based on this story:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!