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Tanya [424]
3 years ago
12

A manufacturer of household washing machines wants to determine the effectiveness of the type of detergent used (three brands –

A, B, and C) and the length of time for the washing cycle (18, 20, and 22 minutes). The manufacturer prepared 18 standard household laundry loads (having equal amounts of dirt and the same total weight) to conduct the study. The manufacturer randomly assigned two loads to each type of detergent, time combination. The researcher recorded the amount of dirt removed. Use a 5% significance level, for all hypothesis tests and confidence intervals. What is the alternative hypothesis for testing the interaction?
Mathematics
1 answer:
ololo11 [35]3 years ago
5 0

Answer:

Two-Factor ANOVA with replication

Step-by-step explanation:

Types of detergent used ( A,B,C ) = 3

Length of time for the washing cycle : A = 18 mins, B = 20 mins, C = 22 mins

number of laundry loads = 18

significance level = 5%

The alternative hypothesis for testing the interaction is a Two-Factor ANOVA with replication this is because the factors that have variations are the : The type of detergent and the length of time for a washing cycle while the load is constant for all.

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ss7ja [257]

Answer:

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3 years ago
What is the product of 3.54 and 3.7? show work / explain please!
Novay_Z [31]
Answer:
Picture with working out

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3 years ago
What is an equation of the line that passes through the point (5, 4) and is parallel to
weqwewe [10]

Answer & Step-by-step explanation:

When two lines are parallel, their slopes are the same. To find the slope of the given equation, convert to slope-intercept form:

y=mx+b\\\\

  • <em>m is the slope</em>
  • <em>b is the y-intercept, which is the value of y when the value of x is zero</em>
  • <em>x and y are the corresponding coordinate points (x,y)</em>

6x-5y=15

Solve for y. Subtract 6x from both sides:

6x-6x-5y=15-6x\\\\-5y=-6x+15

Divide both sides by -5:

\frac{-5y}{-5} =\frac{-6x}{-5} +\frac{15}{-5} \\\\y=\frac{6}{5}x-3

The slope is \frac{6}{5}.

Now you need to make an equation in point-slope form:

y-y_{1}=m(x-x_{1})

  • <em>m is the slope</em>
  • x_{1}<em> and </em>y_{1} <em>are the coordinate points</em>

Insert known values:

y-4=\frac{6}{5}(x-5)

You can use this equation, or you can convert to slope-intercept form by solving for y:

Use the distributive property:

y-4=\frac{6}{5} x-6

Add 4 to both sides:

y-4+4=\frac{6}{5}x-6+4\\\\ y=\frac{6}{5}x-2

:Done

6 0
4 years ago
Need these answers ASAP
OLga [1]

Answer:

1) x^3+4x^2-9x-36

2) not solvable

3)not solvable

4)  not solvable

Step-by-step explanation:

how are you supposed to solve these?

8 0
3 years ago
Solve for y in a=9y+3yx
Oksanka [162]
 hello : 
<span>a=9y+3yx
y(9+3x) = a 
y = a/(9+3x).......9+3x </span><span>≠ 0</span>
8 0
4 years ago
Read 2 more answers
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