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
GuDViN [60]
3 years ago
14

If the average American sleeps 8 hours a night, with a standard deviation of 1 hour, and I plan on gathering a sample of 12 coll

ege students to compare to this population, find the following:
mu =
sigma =
mu_x bar =
sigma_x bar =
Mathematics
1 answer:
Nitella [24]3 years ago
8 0

Answer:

8 hours

1 hour

8 hours

0.288675

Step-by-step explanation:

We complete the answer as follows;

mu = mean = 8 hours

sigma = standard deviation= 1 hour

Mu_x bar = mu = 8 hours

sigma_x bar = sigma/√(n) = 1/√(12) = 0.288675

You might be interested in
Four more than twice a number is -10
Anna [14]

Answer:

-7

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Need help with two questions please
balandron [24]

Answer:

v is negative for every x, meaning the domain is all values in R, whatever goes under the squared sign will come out as positive and the left out -ve sign will make V negative for all x in R

range of f(x) is -inf to +inf

Step-by-step explanation:

the cubic power doesnt affect the sign

3 0
3 years ago
Find each percent of change. Round yo the nearest whole percent if necessary. <br><br> 55 to 35
Reptile [31]
So subtract 55 from 35

35 - 55 = -20

then, put -20 over 55

-20/55 equals -0.36 repeating, rounded to -0.36, which equals 36%

the negative stands for decrease, so it's around 36% decrease
8 0
3 years ago
The figures are similar. Find the missing length
Delicious77 [7]

Answer:

4.5 feet, or is there is 5 feet as an option, then 5 feet.

Step-by-step explanation:

ya just subtract

3 0
2 years ago
Evaluate 3r³+5,when r=2
Elza [17]

Answer:

29  

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Solve 15 ≥ -3x or 2/5x ≥ -2. <br><br> A.) {x | x ≤ -5}<br> B.) {x | x ≥ -5}<br> C.) {all reals}
    10·2 answers
  • The graph of this system of equations is used to solve 4x^2-3x+6=2x^4-9x^3+2x
    5·2 answers
  • No idea where to even begin
    10·1 answer
  • Harold took 5 hours to paint 3 same-sized walls. If he works at the same rate, how long will it take him to paint 18 walls of th
    7·2 answers
  • Combine like term <br><br> 2a - 6 + 6 =
    14·2 answers
  • Helpppppp plsssssssssss
    14·1 answer
  • DUE IN AN HOUR ASAP Help me please
    6·1 answer
  • There is 1 teaspoon of curry powder A. How many milliliters of curry powder are needed?​
    8·1 answer
  • Combine like terms in the following expression: 2x+5y+7t+4p-x-4t+3y-4t-3p
    11·1 answer
  • Una señora compro medio kilo de pescado y 450 gramos de carne de res. ¿Cuánto le falta para completar el kilo?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!