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
Rus_ich [418]
3 years ago
11

12c3d2 21ab 14a2b 8c2d

Mathematics
1 answer:
AfilCa [17]3 years ago
8 0
what are you trying to do with this set of numbers + letters?
You might be interested in
Help me its due in a little
soldi70 [24.7K]

Answer:

a-50 b-300

Step-by-step explanation:

3 0
3 years ago
1) Consider the two functions. Which statement is true?A) The rate of change for function A and function B are the same.B) The s
KIM [24]

Answer:

B.

Step-by-step explanation:

6 0
2 years ago
What is the least common denominator of the fraction 2 over x plus the fraction x over x plus 1 plus the fraction x plus 1 over
Anna71 [15]
3x is the least common denominators because you need to be able to make sure all other denominators can go multiple into it.  Since the rest are just x, the largest number of 3x would be the denominator you want. 
5 0
3 years ago
6/9 divided by 2/4 I really need help
Alex777 [14]

Answer: 1 1/3

Step-by-step explanation: Hope this helped!

3 0
2 years ago
Suppose a local manufacturing company claims their production line has a variance of less than 9.0. A quality control engineer d
Alexxx [7]

Answer:

\chi^2 =\frac{35-1}{9} 2.12^2 =16.979

p_v =P(\chi^2

If we compare the p value and the significance level provided we see that p_v so on this case we have enough evidence in order to reject the null hypothesis at the significance level provided. And that means that the population variance is significantly lower than 9

Step-by-step explanation:

Notation and previous concepts

A chi-square test is "used to test if the variance of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value"

n=35 represent the sample size

\alpha=0.01 represent the confidence level  

s =2.12 represent the sample deviation obtained

\sigma_0 =3 represent the value that we want to test

Null and alternative hypothesis

On this case we want to check if the population variance specification is lower than 9 and the deviation lower than 3, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 \geq 9

Alternative hypothesis: \sigma^2

Calculate the statistic  

For this test we can use the following statistic:

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

And this statistic is distributed chi square with n-1 degrees of freedom. We have eveything to replace.

\chi^2 =\frac{35-1}{9} 2.12^2 =16.979

Calculate the p value

In order to calculate the p value we need to have in count the degrees of freedom , on this case df= n-1= 35-1=34. And since is a left tailed test the p value would be given by:

p_v =P(\chi^2

In order to find the p value we can use the following code in excel:

"=CHISQ.DIST(16.979,34,TRUE)"

Conclusion

If we compare the p value and the significance level provided we see that p_v so on this case we have enough evidence in order to reject the null hypothesis at the significance level provided. And that means that the population variance is significantly lower than 9

6 0
3 years ago
Other questions:
  • Jamie picks out of blouse to purchase. it is on sale for 25% off plus she has a $10 off coupon. she pays $23 for the blouse. det
    7·1 answer
  • What is the sum of 3x10
    14·2 answers
  • What are the domain,range and asymptote of h(x)=6^x-4
    12·2 answers
  • I don't understand this. Please help!:::: Provide an answer for a, b, c, and d.
    11·1 answer
  • Geometry help needed! Jennifer decided to replace the rectangular rug in her living room. The dimensions of the old rug are 8 fe
    5·1 answer
  • Find the sum of the finite sequence: 4, 2, 0, -2, - 4.<br> A12<br> B0<br> C1<br> D4.
    11·1 answer
  • Which absolute value represents a number less than |−0.14|
    14·1 answer
  • 1. Jeremy has $12000 cash to invest in the bank compounded at 4% interest annually.
    7·1 answer
  • Please help me out
    6·1 answer
  • Find the slope of the line passing through each of the following pairs of points (5,0), (-3,0)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!