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Sidana [21]
3 years ago
9

An industrial plant claims to discharge no more than 1000 gallons of wastewater per hour, on the average, into a neighboring lak

e. An environmental action group decides to monitor the plant in case this limit is being exceeded. A random sample of four hours is selected over a period of a week. The observations are 1007, 2226, 2232, 2209.
Required:
a. Find the standard error.
b. To test H0:μ=1000 vs, Ha:μ>1000, find the test statistic. Use the answer from part a for the standard error.
c. Find p-value.
d. Explain how your one-sided analysis implicitly tests the broader null hypothesis that μâ¥1000.
Mathematics
1 answer:
alukav5142 [94]3 years ago
4 0
<h2>Answer:bjuhuvihReeee</h2>

Step-by-step guivivytfyuyufcfycuycuyfcuycfyfuccyctffcycfg.            G

kmmfjrje

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ThE RADIUS of CIRCLE
Firlakuza [10]

Answer:

31.4

Step-by-step explanation:

Because you multiply the circumference by pi

6 0
2 years ago
What is the answer for number 8 and pls give step by step
Pie

Answer:

Trapezoid 1 (left side):

Base 1 = 2

Base 2 = 5

Trapezoid 2 (right side):

Base 1 = 6

Base 2 = 8

Step-by-step explanation:

<u>1st trapezoid:</u>

b_1 = x

b_2 = x + 3

h = 4

Hence, area (from formula) would be:

A=\frac{h}{2}(b_1+b_2)\\A=\frac{4}{2}(x+x+3)\\A=2(2x+3)\\A=4x+6

<u>2nd trapezoid:</u>

b_1 = 3x

b_2 = 4x

h = 2

Putting into formula, we get:

A=\frac{h}{2}(b_1+b_2)\\A=\frac{2}{2}(3x+4x)\\A=1(7x)\\A=7x

Let's equate both equations for area and find x first:

4x+6=7x\\6=7x-4x\\6=3x\\x=\frac{6}{3}\\x=2

We can plug in 2 into x and find length of each base of each trapezoid.

Trapezoid 1 (left side):

Base 1 = x = 2

Base 2 = x + 3 = 2 + 3 = 5

Trapezoid 2 (right side):

Base 1 = 3x = 3(2) = 6

Base 2 = 4x = 4(2) = 8

8 0
3 years ago
A tablet and a digital camcorder are both on sale for 30% off. The regular price of the tablet is $185. The regular price of the
Arlecino [84]

Answer:

129.50

Step-by-step explanation:

3 0
3 years ago
In the following Earliest Start Time (EST) graph, assume each unit of time is an hour.
Stels [109]

8

Step-by-step explanation:

  • Critical Path Analysis is presented using the circle and arrow diagrams.
  • Earliest Start Time = the earliest possible time of  starting the activity
  • An arrow running between two event circles shows the activity needed to complete that task.
  • All arrows run left to right
  • Time for doing just task E = 8 hours (as shown in the figure)

7 0
3 years ago
Solve 15 ≥ -3x or 2/5 x ≥ -2.
ipn [44]

Answer:

x ≥ -5

Step-by-step explanation:

15≥-3x

<em>switch sides</em>

<em>-3x≤15</em>

<em>Multiply both sides by -1 (reverse the inequality)</em>

<em>(-3x)(-1)≥15(-1)</em>

<em>Simplify</em>

<em>3x≥-15</em>

<em>Divide both sides by 3</em>

<em>3x/3≥ -15/3</em>

<em>Simplify</em>

<em>x≥ -5</em>

6 0
3 years ago
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