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2 years ago

Which statement is correct when a scatterplot is constructed?

1 answer:

7 0

The correct statement about when a scatterplot is constructed is the independent variable is the input variable and should be represented by the x-axis. Option A

<h3>Steps in constructing a scatterplot</h3>

Choose independent and dependent variable
Draw a known x-axis for the independent variable
Add y-axis for the dependent variable
Make all the points in the scatterplot
Label graph and axes

From the given steps, we can see that when a scatter plot is constructed, the independent variable is the input variable and should be represented by the x-axis.

Hence, the correct statement about when a scatterplot is constructed is the independent variable is the input variable and should be represented by the x-axis. Option A

The complete question is;

Which statement is correct when a scatterplot is constructed? The independent variable is the input variable and should be represented by the x-axis.

The independent variable is the input variable and should be represented by the y-axis.

The dependent variable is the input variable and should be represented by the x-axis.

The dependent variable is the input variable and should be represented by the y-axis.

Learn more about scatterplot here:

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While driving in an exotic foreign land, you see a speed limit sign that reads 180,000 furlongs per fortnight. How many miles pe

erma4kov [3.2K]

Answer:

66.96

Step-by-step explanation:

Furlong = 1/8 mile

Fortnight = 14 days

Day = 24 hours

If the speed limit is 180,000 furlongs per fortnight, converting the units from furlongs per fortnight to miles per hour:

$V=180000\frac{furlong}{fortnight}*\frac{1\ mile}{8\ furlong}*\frac{1\ fortnight}{14\ days}*\frac{1\ day}{24\ hours} \\V=66.96\ mph$

The speed limit on this exotic land in 66.96 miles per hour.

7 0

3 years ago

Y is less than 4: y<4? Correct me if I'm wrong.

vredina [299]

Answer:

That’s correct

Step-by-step explanation:

y < 4 does mean that y is less than 4. if it helps. Wherever the open side is, means that one is greater. I always look at it like an alligator eating the bigger number

4 0

3 years ago

If 12 people are needed to run four machines, how many people are needed to run 20 machines?

Savatey [412]

Find the number of people to run one machine:

12 people / 4 machines = 3 people per machine.

Now multiply the number of people needed for 1 machine by the total number of machines:

3 people x 20 machines = 60 total people needed.

6 0

3 years ago

Find the median for the given set of data 0.6 , 1.1, 0.87, 2, 0.87, 1.23

Bezzdna [24]

To find the median, place the numbers in order from least to greatest then find the number in the middle

0.6, 0.87, (0.87, 1.1), 1.23, 2

0.87 and 1.1 are in the center.

Add 0.87 to 1.1 then divide it by 2

0.87 + 1.1 = 1.97

Half of 1.97 is 0.985

Hope this helps

4 0

4 years ago

Read 2 more answers

Do private practice doctors and hospital doctors have the same distribution of working hours? Suppose that a sample of 100 priva

Crazy boy [7]

Answer:

1. The correct option is:

B. H0: The distribution of working hours for private practice doctors is the same as the distribution of working hours for hospital doctors.

Ha: The distribution of working hours for private practice doctors is not the same as the distribution of working hours for hospital doctors.

2. The test statistic is -0.97.

3. The correct option is E. We fail to reject the null hypothesis. There is not enough evidence to show that the distribution of working hours for private practice doctors is not the same as the distribution of working hours for hospital doctors.

Step-by-step explanation:

Note: This question is not complete and it contains some inconsistency errors in thee data. The correct complete question is therefore provided before answering the question. See the attached pdf for the correct complete question.

The explanation of the answer is now provided as follows:

1. State the null and alternative hypotheses.

Since we are trying to examine whether private practice doctors and hospital doctors have the same distribution of working hours, this implies that the correct option is:

B. H0: The distribution of working hours for private practice doctors is the same as the distribution of working hours for hospital doctors.

Ha: The distribution of working hours for private practice doctors is not the same as the distribution of working hours for hospital doctors.

2. What is the test statistic?

Note: See the attached excel file for the calculation of total of (f1 * x), total of (f2 * x), total of (f1 * x^2) and total of (f2 * x^2).

From the attached excel file, we have:

N2 = Total of f2 = Sample size of Hospital = 150

M1 = Mean of Private-Practice = Total of (f1 * x) / N1 = 38.40

M2 = Mean of Hospital = Total of (f2 * x) / N2 = 43.60

S1^2 = Variance of Private-Practice = Total of (f1 * x^2) / N1 = 1,541.00

S2^2 = Variance of Hospital = Total of (f2 * x^2) / N2 = 1,975.67

Therefore, we have:

t = (M1 - M2) / ((S1^2 / N1) + (S2^2 / N2))^0.5 = (38.40 - 43.60) / ((1,541 / 100) + (1,975.67 / 150))^0.5 = -0.97

Therefore, the test statistic is -0.97.

3. What can you conclude at the 5% significance level?

At 5% significance level, the test statistic from the Z distribution table known as t-tab is 1.96.

Since our calculated test statistic is -0.9727 is less than 1.96, this implies that we fail to reject the null hypothesis (H0).

Again, since we are trying to examine whether private practice doctors and hospital doctors have the same distribution of working hours, this implies that the correct option is E. We fail to reject the null hypothesis. There is not enough evidence to show that the distribution of working hours for private practice doctors is not the same as the distribution of working hours for hospital doctors.

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8 0

3 years ago