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
Andru [333]
3 years ago
12

The two intervals (114.9, 115.7) and (114.6, 116.0) are confidence intervals (computed using the same sample data) for μ = true

average resonance frequency (in hertz) for all tennis rackets of a certain type. (a) What is the value of the sample mean resonance frequency?
Mathematics
1 answer:
kenny6666 [7]3 years ago
4 0

Answer:

115.3 hertz

Step-by-step explanation:

For either interval, the value of the sample mean is given by the average of the lower and upper bound of the confidence interval. Since both intervals were constructed by using the same sample, both values should be equal.

For the first interval:

M=\frac{114.9 + 115.7}{2} \\M=115.3\ hertz

For the second interval:

M=\frac{114.6 + 116.0}{2} \\M=115.3\ hertz

You might be interested in
What is the difference between an approximate and an exact number?
Aleks [24]

Answer:

An approximate number is a close number that is only off by x number of places (Like a rounded number). An exact number is exactly correct. For example:

3 - 1.5 is approximately 2, but is exactly 1.5.

Mark Brainliest if this helps!

7 0
3 years ago
What is 5 - x = 3(x + 11)​
solong [7]

Answer:

x = -7

Step-by-step explanation:

First, expand right side

5 - x = 3x + 33

Move x to one side and constants to other side

5 - 33 = 3x + x

-28 = 4x

Divide both sides by 4

x= -7

6 0
3 years ago
Read 2 more answers
PLEEEEASSEEEEE ITS URGENT
zavuch27 [327]

Answer:

Step-by-step explanation:

20 times pop. of Panama = 20×(4×10⁶) = 80×10⁶ = 8×10⁷

Population of Thailand = 7×10⁷ < 8×10⁷

pop of Thailand is less than 20 times pop of Panama.

8 0
3 years ago
30 POINTS PLEASE HELP!ASAP
AysviL [449]

Answer:

B

Step-by-step explanation:

To divide by a fraction, multiply by the reciprocal:

(3/4) / (1/8)

(3/4) * (8/1)

Answer B.

8 0
3 years ago
Read 2 more answers
Kelly has made 16 out of 25 free throws. the probability that she will make her next free throw is 64%. Is this an Experimental
Anna71 [15]
Well percents are probability, and probability is similar to theory. So i think its theoritical probability.

Hope this helps.

7 0
3 years ago
Other questions:
  • A dress which costs $59.95 has a decrease in price of 21%.
    9·1 answer
  • PLEASE HELP ASAP! BRAINLIEST TO BEST/RIGHT ANSWER
    13·2 answers
  • hang's uncle from Japan promised to give him 21 g of gold. The local jewelry exchange will buy gold for $1152 per ounce. How muc
    13·1 answer
  • What is the slope of the line wit the points (1,1) and (-2,2)
    9·2 answers
  • PLZZZ HELPP 3+7 - 1/2 is an example of A. a numerical equation B. an algebraic equation C. a numerical expression D. an algebrai
    11·1 answer
  • The black‐footed ferret was declared extinct in 1979, but a small population of the animals was found in Wyoming in 1981. Some o
    14·1 answer
  • Please Help ASAP!! Marking Brainliest!! Divide <img src="https://tex.z-dn.net/?f=12x%5E2%20%2B%204x%5E3%20%2B%2018%20%2B%2016x"
    7·1 answer
  • Kevin wants to purchase a new car that costs $10,000. Every week he saves up $250. It has been 30 weeks. How much money does he
    5·1 answer
  • Plx help me! Brainlist!
    10·1 answer
  • Plese help me i am very stuck ​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!