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
diamong [38]
3 years ago
15

A local convenience store in a large city closes each day at 10 P.M. The owner of the store is investigating whether mean sales

will increase by at least $10 per day if the store remains open until 11 P.M. The owner asked the 41 members of a local civic group to estimate the amount of money they might spend during the extra hour. The sample mean was $11.50. The owner will conduct a one-sample tt-test for a population mean.
Have the conditions for inference been met?

A. Yes, all conditions have been met.
B. No, the sample was not chosen using a random method.
C. No, the sample size is greater than 10 percent of the population.
D. No, the sample size is not large enough to assume normality of the sampling distribution.
E. No, the distribution of the sample is not normal.
Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

the answer is B

Step-by-step explanation:

cuz i have already take the test

You might be interested in
Francine uses 2/3 cup of pineapple juice for every 1/3 cup of orange juice to make a smoothie. Enter the number of cups of pinea
Oksanka [162]
\bf \begin{array}{ccllll}
pineapple&orange\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
\frac{2}{3}&\frac{1}{3}\\\\
x&1
\end{array}\implies \cfrac{\frac{2}{3}}{x}=\cfrac{\frac{1}{3}}{1}\implies \cfrac{\frac{2}{3}}{\frac{x}{1}}=\cfrac{\frac{1}{3}}{\frac{1}{1}}\\\\
-----------------------------\\\\

\bf \textit{now recall that }\qquad \cfrac{\frac{a}{b}}{\frac{c}{{{ d}}}}\implies \cfrac{a}{b}\cdot \cfrac{{{ d}}}{c}\\\\
-----------------------------\\\\
\cfrac{2}{3}\cdot \cfrac{1}{x}=\cfrac{1}{3}\cdot \cfrac{1}{1}\implies \cfrac{2}{3x}=\cfrac{1}{3}\implies 2\cdot 3=1\cdot 3x\implies 6=3x
\\\\\\
\cfrac{6}{3}=x

and surely, you know how much that is
7 0
3 years ago
Which represents a quadratic function?
stiks02 [169]
F(x)=x2 + 2x - 5 represents a quadratic function
6 0
3 years ago
What is the volume of the cylinder shown below? A. 12157 units B. 3617 units C. 647 units D. 152 T units
Slav-nsk [51]

Answer:

D

Step-by-step explanation: the answer is D

4 0
3 years ago
Read 2/3 pages in an hour how long would it take to read 20 pages
alisha [4.7K]
It would take about 63 hours...
6 0
3 years ago
The x-intercept of the line whose equation is 2x - 3y= 6 is
QveST [7]
The x-intercept is 3 and the y-intercept is -2
4 0
3 years ago
Read 2 more answers
Other questions:
  • Nine tenths of a sum of money is 45. Find the whole amount
    15·2 answers
  • Hannah and Anthony are siblings who have ages that are consecutive odd integers the sum of their ages is 92 which equation could
    8·1 answer
  • Write the following as an inequality.
    7·2 answers
  • True-false:the number 0.4 can be written as 4/10, so it is rational number
    13·2 answers
  • Find the value of x<br><br> A. 27<br> B. 35<br> C. 3<br> D. 2
    7·1 answer
  • Rewrite the expression in distributive property 8(2m+1)
    6·2 answers
  • If y varies directly as x and y = 9 when x = –3, find y when x = 40.
    12·1 answer
  • Please help<br><br>what is the measure in degrees of the highlighted ( the middle one) angle<br>​
    11·2 answers
  • Can someone tell me how to do this?
    5·1 answer
  • Solve 14x-7y= 21 for y<br> A. y = 2x - 21<br> B. y=-14x + 21<br> C. y = 14x +3<br> D. y=2x-3
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!