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
Vinvika [58]
3 years ago
7

PLEASE HELP "Given a sample mean of 3.56 and a standard deviation of 0.98, which value falls within the 90% confidence interval

for a sample size of 45?"
A.
3.21
B.
3.28
C.
3.83
D.
3.57
Mathematics
1 answer:
trasher [3.6K]3 years ago
7 0

Answer:

D. 3.57

Step-by-step explanation: Edmentum

You might be interested in
If the number of bacteria in a colony doubles every 210 minutes and the population is currently 8,000 bacteria, what will the po
Stells [14]

Answer:

D is the answer

64,000 exponential function  

Step-by-step explanation:

64,000 exponential function  

The number of bacteria in a colony doubles  every 210 minutes.

The population of bacteria = 8000

Determine how many times the population will double.

\frac{630}{210}

 = 3

Multiply the population by 2 a total of 3 times.

8000 × 2³ = 64,000

8 0
3 years ago
) A watershed experiences a rainfall of 8 inches. What is the runoff volume when the curve number is 80
finlep [7]

Answer:

5.625 inches

Step-by-step explanation:

Given that:

Total Rainfall in inches (P) = 8 inches

The runoff volume (in inches) Q = ???

The curve number CN = 80

Recall that: The runoff volume can be calculated by using the formula:

Q = \dfrac{(P-0.2S)^2}{(P+0.8S)}    for P > 0.2S

Q = 0                     for P < 0.2S

S = \dfrac{1000}{CN}-10

where:

curve number CN = 80

S = \dfrac{1000}{80}-10

S = 2.5 inches

Since the rainfall (P) is greater than 0.25

Then:

Q = \dfrac{(P-0.2S)^2}{(P+0.8S)}  

Q = \dfrac{(8-0.2(2.5))^2}{(8+0.8(2.5))}

Q = \dfrac{(8-0.5)^2}{(8+2)}

Q = \dfrac{(7.5)^2}{(10)}

Q = \dfrac{(56.25)}{(10)}

Q = 5.625 inches

Thus, the runoff volume = 5.625 inches

4 0
3 years ago
Pls help asap not very good @ math
yanalaym [24]

Answer:

b. The function is linear and has y intercept (0,  20,000)

Step-by-step explanation:

The function is linear and has y intercept at (0,  20,000)

8 0
3 years ago
Find the answer<br> 5/8 + (2/3 - 1/4) =
Olin [163]

Answer:

25/24

Step-by-step explanation:

simplify: 2/3-1/4 to 5/12

5/8+5/12

=25/24

5 0
3 years ago
Read 2 more answers
Mr. kasberg rides his bike at 6 mph to the bus station. he then rides the bus to work, averaging 30 mph. if he spends 20 minutes
SIZIF [17.4K]
Convert 20 min to hrs: 20/60 = 1/3 hr
Let t = time on the bikethent-(1/3) = time on the bus
Write a dist equation Dist = speed * time:Bike dist + bus dist = 26 mi6t + 30[t-(1/3)] = 26:6t + 30t - 10 = 2636t = 26 + 1036t = 36t = 1 hr on the bike
6 mph for 1 h = 6 mi from house to the bus station
Check solution by finding the distance6(1) + 30(2/3) =6 + 20 = 26 mi                       
4 0
3 years ago
Other questions:
  • On a graph with y-values ranging from 112,020 to 982,192, what is a reasonable scale to use on a y-axis with 10 tick marks?
    15·1 answer
  • There are 10 girls and 8 boys in Mr Augellis class. If 5 more girls and 5 more boys join the class, will the ratio of girls to b
    5·1 answer
  • Evaluate the expression when x = 1/2 and y = -2/5. Show all work.<br>1. -x + y<br>2. x +2y
    7·1 answer
  • You just found a positive trend line showing a strong relationship between homework scores and test scores for five students. Ex
    8·2 answers
  • I need help with this question its due today and I don't understand it.
    12·2 answers
  • Segment XZ is bisected by point Y. If XY= 12x, and the measure of XZ= 18x-6, solve for x.​
    13·2 answers
  • I need help pleaseeeees
    13·1 answer
  • Find the value of x in the isosceles triangle shown below.<br> 2<br> 2<br> 5<br> 8
    7·1 answer
  • Denise bought a T-shirt at the sale price of $24. The original cost of a T-shirt was $40. What percent represents the discount t
    13·1 answer
  • Write an equation of the line in slope-intercept form given the slope is 2 and the y-intercept is -5.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!