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
NNADVOKAT [17]
2 years ago
6

Know how to calculate sample size: A restaurant would like to estimate the average $ amount of a take-out order. The standard de

viation is $15. If a 99% confidence level and an interval (error) of $5 is desired, how many customers should be in the sample?
Which of the following examples would use the z-distribution:______.
a. x = 100; µ = 99; s = 5; n = 70
b. x = 50; µ = 53; σ = 7; n = 15
c. x = 7; µ = 4; s = 1; n = 20
d. x = 15; µ = 17; σ = 3; n = 45
Mathematics
1 answer:
Ne4ueva [31]2 years ago
8 0
Easy it’s c duhhhhhhh girl it’s C
You might be interested in
Just learn this throughout a quick lesson, can someone help?
suter [353]

Answer:

The Pythagorean theorem is a^2+b^2=c^2 where c is the length of the longest, diagonal side (diagonal means opposite the right angle/small square).

Step-by-step explanation:

If you're looking for a short side (i.e. next to the right angle), square the longest one and subtract the square of the other known.

If you're looking for a long side (i.e. opposite the right angle), square both you know and add them together.

In both cases, take the Square Root with your calculator, or by trial and error, find a number that squares to make your current number.

[1] A square of the number x is x times x.

6 0
3 years ago
You sent the same email message to 10 of your friends. The numbers of hours it took them to reply were 1, 1, 1, 2, 2, 3, 4, 5, 5
Katarina [22]
Median is 5
Mean is 4.9
Mode is 1
7 0
3 years ago
Read 2 more answers
I need help!
blagie [28]

Here is the solution...

1) \sqrt[3]{135} \\

Solution

We can rewrite \sqrt[3]{135} = \sqrt[3]{27} *\sqrt[3]{5}

Here, \sqrt[3]{27} = 3

Now substitute the value, we get

\sqrt[3]{135} = 3 \sqrt[3]{5}

The answer is 3\sqrt[3]{5}


2) -5\sqrt[3]{40} Solution[tex]-5\sqrt[3]{40} = -5\sqrt[3]{8} *\sqrt[3]{5}

Here \sqrt[3]{8} = \sqrt[3]{2^{3} } = 2\\

Therefore, we get -5*2\sqrt[3]{5} = -10 \sqrt[3]{5}

The answer is-10 \sqrt[3]{5}[/tex]


2) 2\sqrt[3]{5} * 4\sqrt[3]{8}

Solution

\sqrt[3]{8} = 2

Now plug in the above in the given expression, we get

2\sqrt[3]{5} * 4*2 = 16\sqrt[3]{5}                         {2*4*2 = 16]

The answer is 16\sqrt[3]{5}

8 0
3 years ago
Please help me. Brainliest xD
masya89 [10]

\pi \alpha \alpha \beta \\

3 0
3 years ago
Read 2 more answers
Estimate the square root to the nearest internet 25
Yuki888 [10]
Th square root of 25 is, 5
6 0
2 years ago
Other questions:
  • 6. A salesman needed to sell a four-
    12·1 answer
  • How do you solve Diamond problems?
    5·2 answers
  • David says he has 2/3 of a pipe length​ left, while Don says he has 11/16 of a length left. Which person has the longest section
    7·1 answer
  • Order the terms p^2, p^4, p^3 and p in descending powers of p
    11·1 answer
  • What does creditworthiness mean?
    13·2 answers
  • How many of u are from India​
    7·1 answer
  • A landscaping company estimates the price of a job,in dollars, using the expression 60 + 12nh, where n is the number of
    14·1 answer
  • 89.6 by 7<br><br>a 0.128<br><br>b 1.280<br><br>c. 12.800<br><br>d.128.000
    8·1 answer
  • Help pls I really need this
    13·1 answer
  • If 120% is £360, what is 100%?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!