1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
If the margin of safety is 0, then a.the margin of safety cannot be less than or equal to 0; it must be positive. b.the company
sdas [7]

Answer:

d.the company is precisely breaking even.

Explanation:

Margin of safety is referred to current sales - Break even sales ratio to current sales as a percentage.

Basically it is quoted as follows:

\frac{Current\ sales\ -\ Break-even\ Sales}{Current\ Sales} \times 100

Therefore, when the current sales = Break even sales then only the company will have margin of safety = 0

Thus, at 0 margin of safety the company basically is at no profit no loss situation, that is break even.

3 0
2 years ago
Do you think the efforts of Brazil's government to keep the economy growing will e successful
myrzilka [38]
No...........I don't think so
6 0
3 years ago
A salesperson is offering promissory notes for a company selling coffee at drive-through kiosks. The notes pay a 13% interest ra
OverLord2011 [107]

Answer:

Legitimate promissory notes are marketed to sophisticated, corporate investors that have the ability to thoroughly research the company issuing the notes and determine whether the issuer will be able to repay principal and interest.   There have been many instances of "promissory note fraud" where unlicensed individuals push bogus promissory notes that are sold as investments that offer above-market fixed interest rates and safeguarding of principal - and most of there are frauds.  This is a major concern to state regulators.

To offer a promissory note, both the salesperson and the note must be registered in the state.  Only promisory notes that have maturities of 9 months or less, that are investment grade, and are sold in minimum increments of $50,000 are exempt from registration.  

Finally, the tell-tale sign of fraud are:

Statements that tho notes are "guaranteed" or insured, especially by bogus foreign entities.

Promises of above-market rates fo return

Statements that the notes are "risk"free"

The labeling of a star-up company´s notes as prime

Offers of promissory notes from a stanger who does not know the costumer financial situation

4 0
3 years ago
Hoffman Company purchased merchandise on account from a supplier for $65,000, terms 1/10, n/30. Hoffman Company returned $7,500
Stella [2.4K]

Answer: a. $56925 ; b. Account payable

Explanation:

a. If Hoffman Company pays the invoice within the discount period, what is the amount of cash required for the payment?

Purchase invoice = $65000

Less: Return = ($7500)

Net Purchase Invoice = $57500

Less: Discount = $57500 × 1% = $575

Cash received = $56925

b. What account is debited by Hoffman Company to record the return?

The account that is debited by Hoffman Company to record the return is the account payable.

3 0
2 years ago
Mocha Company manufactures a single product by a continuous process, involving three production departments. The records indicat
marshall27 [118]

Answer:

The journal entry to record the flow of costs into Department 1 during the period for applied overhead is

Work In progress Account $150,000 (debit)

Manufacturing Overhead Account $150,000 (credit)

Explanation:

Applied overheads are determined by multiplying the Actual Activity (example hours) and Budgeted Overhead Rate. In Our question this figure is given as $150,000.

When Applying the Overhead to a product:

De-recognise the amount applied by reducing the Overhead account balances and Recognise the costs in the Work In Process Account by increasing it with amount applied.

7 0
2 years ago
Other questions:
  • You own a building that has four possible uses: a cafe, a craft store, a hardware store, and a bookstore. The value of the build
    13·1 answer
  • Jenny, owner of an ice cream parlor, has been experimenting with different flavors to create a new exotic ice cream for her cust
    8·1 answer
  • Your father is 50 years old and will retire in 10 years. He expects to live for 25 years after he retires, until he is 85. He wa
    13·1 answer
  • What was Thomas Malthus’s theory of population growth?
    14·1 answer
  • Brandon, a manager at fairpro technologies corp., is required to provide individual performance feedback to his subordinates. in
    5·1 answer
  • The FIFO method provides a major advantage over the weighted-average method in that: A. the calculation of equivalent units is l
    14·1 answer
  • What will most likely cause a lender to deny credit?
    6·1 answer
  • Table 1 contains information about a small business for one month. The business
    8·2 answers
  • Miriam if you found this comment
    13·1 answer
  • A fish cannot survive without water and a profession cannot exist without education. Justify this statement logically.​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!