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Sloan [31]
3 years ago
14

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

average number of cacti per square km in tucson, az in the year 1970. for this study, he will make use of data from a 1970 study in which a random sample of 15 plots of land (each 1 square km) was taken around tucson, az. the park service researcher goes back to those exact same plots, and re-measures the number of cacti per square foot for each plot. below are the results from the analysis of this data.
Business
1 answer:
tia_tia [17]3 years ago
5 0

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.

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Answer:

Georgeland has an absolute but not a comparative advantage in producing clothing.

Explanation:

Absolute advantage is defined as the ability of a firm to produce higher amounts of a product as a result of use of the same resources with other competitors. It is usually bad a result of more efficient production process.

Comparative advantage is the ability of a firm to produce goods at a lower opportunity cost. Therefore they are able to sell at lower price compared to competitors.

Georgeland can produce 18 units of clothe per year while Alland can produce 16 units per year, so Georgeland has absolute advantage.

In producing clothes Georgeland has opportunity cost of 36 units of food which is higher than that of Alland which is 32 units of food. So Georgeland does not have comparative advantage in producing clothes.

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3 years ago
Carmen is a member of a student taskforce that was asked to recommend solutions to the university's budget problem. when she not
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Answer: democratic leadership

Carmen stated a possible solution that was increasing tuition fee and then Carmen said that it should be considered. This means that she did not impose it that that is the only solution and that has to be done in any way, if she did then it would’ve been autocratic leadership.

Carmen left some room for discussion and this means it is a democratic approach in leadership.  


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3 years ago
Almost all tasks in a project will be connected using either _____ or _____ dependencies.Select an answer:a)start-to-finish; fin
anyanavicka [17]

Answer:

c) finish-to-start; start-to-start

Explanation:

Project dependencies are the time relationships between a predecessor and a successor in project management. In other words, these dependencies describe which activity among the two needs to start earlier or later and when it needs to start or finish compared to the other one.

The most common type of dependency in all projects (no matter the nature or industry) is the finish-to-start one, where the activity A needs to be completed before activity B starts, e.g. base nail polish has to be put before the top coat gets put on the nails.

The second most common type of dependency is the<em> start-to-star</em>t one, where two activities need to start at the same time. This is common for activities where synchronization is paramount.

3 0
3 years ago
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Nero signs a check "pay to the order of Olive" drawn on Nero's account in Plum Bank- Olive signs the back of the check. Secondar
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Answer:

A. Nero and Olive only

Explanation:

The primary liability is on Olive, and secondary liability is on both Nero and Olive. Secondary liability is a legal obligation that a party accepts on behalf of another party. In this case, Nero and Olive are liable for each other.

The bank is not liable for any action related to the check except for those directly related to the bank's operation.

6 0
3 years ago
Which of the following is a correct statement? Multiple Choice Writing off an uncollectible account under the allowance method d
jok3333 [9.3K]

Answer:

Estimating un-collectible accounts expense improves the matching of revenues and expenses.

Explanation:

When uncollectibles are recorded through allowance method then, bad debts expense is provided, which reduces net income. But at the time of writing off only the allowance and accounts receivables account is affected and not the net income.

When direct method is used then also the net income gets reduced, as bad debt expense and accounts receivables is affected.

And as provided in first para, when estimating and creating the allowance for bad debts, it affects net income, and it also represents the true and fair view of expenses and income.

Thus, statement c is correct.

4 0
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