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Liula [17]
3 years ago
5

One way to avoid _______ is to choose a large enough sample size.

Business
1 answer:
Virty [35]3 years ago
4 0

<span>The answer is Researcher bias.
One way to avoid researcher bias is to choose a large enough sample size. Researcher bias is also known as experimenter bias.</span>Researcher bias is a method or process in which to present a certain results, scientists  performs the research that influenced upon the result.

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A member of the park service believes the average number of cacti per square km in tucson, az in the year 2001 is less than the
tia_tia [17]

Question Continuation

a. What is a subject in this study?

b. What is the explanatory variable and what type of variable is it?

c. Which type of test is most appropriate?

Answer:

See Explanation Below

Explanation:

a.

In research, a subject can be referred to as a person, place, thing, or phenomenon that is being measured of observed. In the question above, the observation is focused on the area of cacti/km² plot of land near Tucson, AZ; hence, it'll be taken as the research subject.

b. Explanatory variables are those variables that are not totally independent and are used to predict or explain differences in the response variable.

Having pointed what an explanatory variable is, we'll list the explanatory variable(s) in the question, using the definition above.

1. Year;

The question compares the growth of cacti per km² in 1970 and 2001. The differences in the growth are then measured in order to determine if there's indeed a growth or a decline in growth of cacti.

Hence, year is an explanatory variable and it's numerical

2. Using the same yardstick, another explanatory variable in the question above is the average number of cacti per km².

It is considered an explanatory variable because it represent the numerical value of cacti present in a km² area.

It is also numerical

c.

The most appropriate type of test in this kind of observation is the independent sample t test.

An Independent Samples t Test takes into consideration the means or averages of two independent groups and then make makes comparison between them in order to determine whether there is statistical evidence that the associated population means are significantly different.

The question compares the average of cactus in 1970 and 2001.

The keyword here is average and that is what is being described by the independent sample t test. I.e. the average of cactus per km² in both years.

5 0
3 years ago
What does a population possibilities curve represent
jeka94
I'm guessing its a combination of two goods that can be produced using limited resources in order for a economy to be efficient they must be able to decide on the products and services they can produce with their limited resources.
4 0
3 years ago
Coronado Industries sells one product and uses a perpetual inventory system. The beginning inventory consisted of 77 units that
soldi70 [24.7K]

Answer:

$6745

Explanation:

Given: Beginning inventory is 77 units at the cost of $19 per unit.

            Purchased inventory is 476 units at $19 per unit.

            Sales during the month is 355 units at $45 per unit.

Now, let´s find the cost of goods sold using LIFO method.

We know, LIFO method is Last in first out, which sell out inventory, which are most recently purchased. In a period of rising prices, LIFO inventory method tends to give the highest reported cost of goods sold.

As sales unit is 355 units.

Let´s take units from recent purchased inventory.

Cost of good sold= 355\ units\times 19= \$ 6745

Hence, the cost of goods sold using the LIFO method is $6745.

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3 years ago
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