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
slega [8]
3 years ago
11

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customer

s to check out was 3 minutes. It is known that the standard deviation of the population of checkout times is 1 minute. The 95% confidence interval for the true average checkout time (in minutes) is
Mathematics
1 answer:
Temka [501]3 years ago
4 0

Answer:

100/3=33

Step-by-step explanation:

33 minuets for the true average checkout time.

You might be interested in
I need help on this one
umka2103 [35]
You seem to have gotten m∠2. Remember that ∠1 and ∠2 are alternate interior angles, meaning they're both equal. Since they gave you m∠1 as being 26°, you now know the measure of ∠2.

As for m∠3 and m∠4, If you look at ∠3 you'll see that it is complementary to ∠1 (They both add up to 90°), so if you subtract m∠1 from 90° you'll have found m∠3. You find m∠4 the same way.

Hope this helped.
6 0
3 years ago
Solve the logarithmic equation: x= log5 (1/625)=
Verizon [17]
You can convert (1/625) to an exponent, and it would be ideal to have 5 as the base of it because you want your log base to cancel it out. what i usually do in this case is just test out 5^1, 5^2, etc until i find one that matches the number i need. in this case because the number you're trying to work with is a small fraction, you'll want to use NEGATIVE exponents so it'll create a fraction instead of a large whole number:

5^-1 = 1/5
. . . keep trying those. . .
5^-4 = 1/625

so, because they're equal to one another, it'll be waaay easier after you substitute 5^-4 in place of 1/625

x = log₅ 5⁻⁴

log base 5 of 5 simplifies to 1. subbing in the 5^-4 gets rid of the log for you altogether, and your -4 exponent drops down:

x = -4 is your answer

if the exponent dropping down doesn't make sense to you, you can think of it in another way:

x = log₅ 5⁻⁴

expand the expression so that the exponent moves in front of the log function:

x = (-4) log₅ 5

then, still, log base 5 of 5 simplifies to 1, so you're left with:

x = (-4)1 or x = -4
5 0
3 years ago
8. | 11 | 14 | 17 | 20<br> What’s the function
Murrr4er [49]

Answer:

What do you exactly need to do?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Complete the general form of the equation of a sinusoidal function having an amplitude of 4, a period of π , and a phase shift t
alex41 [277]

Answer:

4 sin (2x - 4).

Step-by-step explanation:

The amplitude of  sin x = 1 so our curve with amplitude 4 will have 4 sin x as part of the general form. To alter the period from 2pi to pi we multiply the x by 2, giving 4 sin 2x, Finally to get a phase shift of 2 to the right, we replace the x by x - 2.

Our formula is  4 sin (2(x - 2))

= 4 sin (2x - 4).

8 0
3 years ago
Simplify this ratio 10 feet/30 inches
Deffense [45]

Answer:

1 feet/3 inches

7 0
2 years ago
Other questions:
  • Solve the system of equations using elimination. 2x – 3y = 9 and 3x + 2y = –6
    10·2 answers
  • What is 74 divided by 99
    11·2 answers
  • Johnny buys 4 pounds of turkey and 2 pounds of ham. She pays a total of $30 and the turkey cost $1.50 less per pound than the ha
    12·2 answers
  • There are 800 8th grade students at Washington Middle School. If 12 students are allowed to swim in the pool each day how many d
    5·2 answers
  • Please answer this correctly
    14·2 answers
  • In the broken china plate, CD = 8 cm, OY, the perpendicular bisector of CD, = 3 cm. What is the diameter of the plate?
    11·2 answers
  • The titanium content of an alloy is being studied in the hope of ultimately increasing the tensile strength. An analysis of six
    9·1 answer
  • Will give brainliest if fill out! Please!
    5·1 answer
  • Sandra bought 3 pounds of sweet potatoes for $4.89. What is the cost per pound of the sweet potatoes?
    11·2 answers
  • Pls help me for 15 points
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!