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Anestetic [448]
3 years ago
14

Midnight Mocha is a 24-hour café that specializes in coffee drinks. It has a drive- through that is almost fully automated. Eac

h mug of coffee is dispensed by the automated machinery and should provide exactly 12 ounces. Recently, customers have complained that the cups appear to have too much or too little coffee. Midnight Mocha began a quality control program. Every day for 9 days they sampled 9 cups of coffee. They computed the average amount of coffee for the 9 cups and the range of values. Those values are listed below. 1 2 3 4 5 6 7 8 9 Mean 11.9 12.2 12.0 12.1 11.7 11.9 12.1 12.1 12.0 Range 0.19 0.24 0.18 0.19 0.19 0.18 0.07 0.09 0.07 Use formulas with table values to determine control limits. What would be the upper control limit (UCL) and lower control limit (LCL) for the means? (2 decimals) UCL 12.05 LCL 11.99 What would be the upper control limit (UCL) and lower control limit (LCL) for the range values? (2 decimals) UCL How many of the observations for the means are out of control? (maintain 2 decimals in comparisons) How many of the nine observations for the ranges are out of control? LCL =
Mathematics
1 answer:
Artist 52 [7]3 years ago
5 0

Answer:

hi

Step-by-step explanation:

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I don’t understand the polynomials
Serhud [2]
Polynomial comes from poly- (meaning "many") and -nomial (in this case meaning "term") ... so it says "many terms"

A polynomial can have:

constants (like 3, −20, or ½)
variables (like x and y)
exponents (like the 2 in y2), but only 0, 1, 2, 3, ... etc are allowed
that can be combined using addition, subtraction, multiplication and division ...

... except ...

... not division by a variable (so something like 2/x is right out)

So:

A polynomial can have constants, variables and exponents,
but never division by a variable.

Also they can have one or more terms, but not an infinite number of terms.

These are polynomials:

3x
x − 2
−6y2 − ( 79 )x
3xyz + 3xy2z − 0.1xz − 200y + 0.5
512v5 + 99w5
5
(Yes, "5" is a polynomial, one term is allowed, and it can be just a constant!)



These are not polynomials

3xy-2 is not, because the exponent is "-2" (exponents can only be 0,1,2,...)
2/(x+2) is not, because dividing by a variable is not allowed
1/x is not either
√x is not, because the exponent is "½" (see fractional exponents)


But these are allowed:

x/2 is allowed, because you can divide by a constant
also 3x/8 for the same reason
√2 is allowed, because it is a constant (= 1.4142...etc)
7 0
3 years ago
The expression i/pt represents the rate of instrest being charged if a loan of p dollars for t years required i dollars in intre
zysi [14]

Answer:

7.3%

Step-by-step explanation:

Given:

<em>Formula for Rate of interest </em>R:

R=\dfrac{i}{Pt}

Where i is the rate of interest.

P dollars is the loan and

t years is the time for which interest is to be paid

P =\$690\\t=3\ years\\i=\$151.11

To find:

R=?

Solution:

Putting the given values in the formula:

R=\dfrac{151.11}{690 \times 3}\\\Rightarrow R=\dfrac{151.11}{2070}\\\Rightarrow R=0.073

Multiply the above value with 100 to find the percentage.

i.e.

R=0.073\times 100 = \bold{7.3\%}

Therefore, the answer is <em>7.3%</em>

8 0
3 years ago
Solve: (3*5)+(45*4)-(24/2)+(12-4)-(5*2)=
Anna11 [10]

Answer:

B) 181

Step-by-step explanation:

3*5=15

45*4=180

24/2=12

12-4=8

5*2=10

15+190-12+10-10=181

8 0
3 years ago
A manufacturer of cell phone screens is concerned because 12 percent of the screens manufactured using a previous process were r
astraxan [27]

Null hypothesis: There is no significant association between the existing process and the new process for reducing the population proportion of screens that will be rejected .

Alternative hypothesis :There is a significant association between the existing process and the new process for reducing the population proportion of screens that will be rejected .

Finally the null hypothesis will be rejected and we should accept the alternate hypothesis

Step-by-step explanation:  

In the existing process the sample size and population was not known.,but the percentage of rejected screens were given as 12%.,but in the new process out of 100 screens only 6 are rejected

 percentage of rejected screens using new process = 6÷ 100 ×100 = 6%  

 percentage of rejected screens using existing (old) process = 12%

so the new process is the effective one which reduces the rejection rate of screens., hence it is concluded that There is a significant association between the existing process and the new process for reducing the population proportion of screens that will be rejected .

so the null hypothesis will be rejected and we should accept the alternate hypothesis

4 0
2 years ago
In a survey, 10% of the people said they live in a city. If 70 people
ddd [48]
700 people were surveyed.

SOLUTION
70/10%
=700

Or

7 x 10^2
=700

HOPE THIS HELPS!! :))
8 0
2 years ago
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