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
irga5000 [103]
3 years ago
15

If the population mean payment time is 19.5 days, what is the probability of observing a sample mean payment time of 65 invoices

less than or equal to 18.1077 days?
Mathematics
1 answer:
Maksim231197 [3]3 years ago
5 0

Answer: P(mean x<18.1077) = P(z< -2.67) = 0.0038

Step-by-step explanation:

Value of Z for 18.1077 = (18.1077 - 19.5)/0.5209 = -2.67

You might be interested in
Divide 6.1 and 51.24
tatiyna

Answer:

.119047619

hope this helped

8 0
2 years ago
Read 2 more answers
Suppose a lab needs to make 400 liters of a 39% acid solution, but the only solutions available to the lab are 20% acid and 50%
Alekssandra [29.7K]
Mixture problem.
Ratio of 20% : 50% acids
=50-39 : 39-20
=11:19
total volume
=400L
vol. of 20% acid=400*(11/(11+19)=400*(11/30)=146.667 L
vol. of 50% acid=400*(19/(11+19)=253.333 L

Alternatively, use c=volume of 20%, d=vol of 50%
then
0.2c+0.5d=400*0.39
Since c+d=400, we have
0.2c+0.5(400-c)=400*0.39=156
solve for c:
0.3c=44
c=146.667 and d=400-c=253.333  as before.
3 0
3 years ago
A dive ring on the bottom of the pool is 10 feet below the surface of the water. Sabine dives down and brings the ring back to t
MissTica

The surface of the water is 0 feet. So 10 feet down means it is 0 - 10, or -10 feet as its final position.


8 0
3 years ago
Read 2 more answers
EXERCISES 1. The mean of the number 5, 2, 3, x, 9 is 48. Find the value of and state the mode of the five numbers Given the foll
IrinaVladis [17]

Answer:

66

Step-by-step explanation:

I don't know the explanation but the answer is correct.

5 0
2 years ago
Let f(x)=5e^3x and g(x)=2/3ln(5x); find (f(g))(2)
Sedbober [7]

Answer:

<h2>a) 500</h2>

Step-by-step explanation:

(f\circ g)(x)=f\bigg(g(x)\bigg)\\\\(f\circ g)(2)=f\bigg(g(2)\bigg)\\\\f(x)=5e^{3x},\ g(x)=\dfrac{2}{3}\ln(5x)\\\\(f\circ g)(x)\to\text{in}\ f(x)\ \text{replace}\ x\ \text{with the expression}\ \dfrac{2}{3}\ln(5x):\\\\(f\circ g)(x)=5e^{3\cdot\frac{2}{3}\ln(5x)}=5e^{2\ln(5x)}\qquad\text{use}\ \ln a^n=n\ln a\\\\(f\circ g)(x)=5e^{\ln(5x)^2}\qquad\text{use}\ a^{\log_ab}=b\\\\(f\circ g)(x)=5(5x)^2=5(5^2x^2)=5(25x^2)=125x^2\\\\(f\circ g)(2)\to\text{put}\ x=2\\\\(f\circ g)(2)=125(2^2)=125(4)=500

3 0
3 years ago
Other questions:
  • Which of the following are the coordinates of the vertex of y = −x2 + 2x + 1
    10·1 answer
  • Which of these strategies would eliminate a variable in the system of equations?
    5·2 answers
  • What is the value of x in the equation 1,331x^4-216=0?
    13·1 answer
  • Ak = v+w solve for a
    5·1 answer
  • Real Answers | Brainliest | There are no images
    14·1 answer
  • Five less than 3 times the length, l
    11·1 answer
  • Apply the distributive property to factor out the greatest common factor.<br> 32+44=32+44=
    9·1 answer
  • Hannah went swimming after she woke up. It took Hannah 15 minutes to get ready to go swimming. She swam for 30 minutes and then
    11·1 answer
  • Please help. i'm desperate. will give brainliest
    11·2 answers
  • Find x, mKJL, and mKJM.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!