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3 years ago

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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 testÂ H0:Î¼=1000Â vs,Â Ha:Î¼>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 thatÂ Î¼â¥1000.

1 answer:

alukav5142 [94]3 years ago

4 0

<h2>Answer:bjuhuvihReeee</h2>

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3 years ago

If there are approximately 1.8 million cars in Vancouver and if each car travels an average of 17,500 kilometres in a year, how

Goryan [66]

Rates are used to measure a quantity over another.

<em>The 1.8 million cars use </em> $1.85 \times 10^{10}$ <em> liters each year</em>

Given

$Cars = 1.8\ million$

$d = 17500km$ --- distance

$r = 40miles/gallon$

First, we calculate the number (n) of gallons used by each car

$r = \frac{d}{n}$

Solve for n

$n = \frac{d}{r}$

So, we have:

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$n = \frac{17500km}{40miles}gallon$

Convert miles to kilometers

$n = \frac{17500km}{40km \times 1.60934}gallon$

$n = \frac{17500km}{64.3738km}gallon$

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The number of gallons (N), used by all the cars is:

$N = n \times cars$

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$N = 489330000$

Convert to liters

$N = 489330000 \times 3.78541L$

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In scientific notation to 2 decimal places, we have:

$N = 1.85 \times 10^{10}L$

<em>Hence, the number of liters used is </em> $1.85 \times 10^{10}$ <em />

Read more about distance and rates at:

brainly.com/question/24659604

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To find the slope, we find the rise over run.

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The run is 3 - 5 = -2.

The slope is 3 / (-2) = -3/2.

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Which graph represents the line y=−3x+4?

harkovskaia [24]

Answer:

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Step-by-step explanation:

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If the if a cylinder is 7 in tall and has a volume of 63 Pi inches what is the area of the cross section it goes right down the

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Step-by-step explanation:

Given

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Insert the values

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