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mina [271]
3 years ago
7

For the following description of data, identify the W's, name the variables, specify for each variable whether its use indicates

it should be treated as categorical or quantitative, and for any quantitative variable identify the units in which it was measured (or note that they were not provided). Specify whether the data come from a designed survey or experiment. Are the variables time series or cross-sectional? Report any concerns you have as well.A company provides ratings from customer experiences on restaurants. For each restaurant, the percentage of customers that would return , the seating capacity and ratings of the service , decor , and food (all on a 30-point scale) are reported.1. Who was measured?A.The ratings companyB.The customersC.The restaurantsD.This information is not given.2. What was measured?A.The seating capacityB.The percentage of customers that would returnC.The foodD. The serviceE.The decorF. This information is not given.3. When were the measurements taken?A. CurrentlyB. RecentlyC. Last yearD. This information is not given.4. Where were measurements taken?A. At the customers' homesB. At the restaurantsC. At the ratings companyD. This information is not given.5. Why were the measurements taken?A. To provide a service to consumersB. To show an association between quality and costC. To determine the best restaurantD. This information is not given.6. How were the measurements taken?A. The data were collected by volunteer critics.B. The customers were surveyed.C. The staff at the restaurants were surveyed.D. This information is not given.7. Specify the categorical variables for this problem.A. The serviceB.The seating capacityC. The foodD. The percentage of customers that would returnE. The decorF. There are no categorical variables.8. Specify the quantitative variables and identify the units for this problem.A. The seating capacity ;the units are not specifiedB. The percentage of customers that would return ; the units are percentC. The decor ;the units are pointsD. The service ;the units are pointsE. The food ; the units are pointsF. There are no quantitative variables.9. Specify whether the data come from a designed survey or experiment.A. ExperimentB. Designed surveyC. This information cannot be determined by the given data.10. Are the variables time series or cross-sectional?A. Time seriesB. Cross-sectionalC. Neither11. Specify any concerns. A. The data collection was done incorrectly.B. The data sample size was too small.C. There are too many categorical variables.D. There are no specific concerns.
Mathematics
1 answer:
larisa [96]3 years ago
4 0

Answer:

1) C

2) B

3) D

4) B

5) C

6) B

7) F

8) B

9) B

10) B

11) D

Step-by-step explanation:

1) The restaurants were measured for each restaurant to give ratings as observations is being carried out on restaurants

2) The percentage of customers was measured to determine ratings. The food and decor can't be measured. Seating capacity is not a measurement variable.

3) The date of measurement is not mentioned

4) The measurement would have to be taken at restaurant obviously.

5) The measurments were taken to determine the ratings and decide the best restaurant

6) Since percentage of customers was measured, the customers had to be surveyed.

7) There are no categorical variables. All variables were measured on the scale of 30

8) Quantitative variable under investigation is number of customers who returned.

9) This is a survey not a design experiment. In design experiment, somethig is put on a test.

10) This is a cross-sectional data. nothing is being measurd over a period of time

11) There are no specific ocncerns since no data is mentioned in the question.

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Tricia made a circular mat from a square piece of cloth as shown in the diagram below.
kap26 [50]

The option C) 49 inches is the circumference of the circular mat.

<u>Step-by-step explanation:</u>

  • Tricia made a circular mat from a square piece of cloth.
  • The measure of the side length of the square = 14 inches.
  • The length of the side is same as the diameter of the circle.
  • Therefore, the diameter of the circular mat = 14 inches.

<u>To find radius :</u>

Radius = diameter / 2

⇒ 14/2

⇒ 7 inches.

<u>To find the circumference of the circular mat :</u>

Circumference = 2πr

where,

π has the default value of 3.14

r is the radius of the circular mat.

⇒ 2 × 3.14 × 7

⇒ 44 inches.

∴ The circumference of the circular mat is 44 inches.

Since, it is not given in the option. The option C) 49 inches which is close to 44 inches is the right option.

8 0
3 years ago
Can anyone help me with this?
andrew11 [14]
1. divide by the GCF it will give you smaller numbers 2.then factor 3. set each factor to = 0 4. you will have 2 values for x hope this helps
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3 years ago
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Simplify the expression. 9n - 3n + 5.
Greeley [361]
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What is the answer to this solution. -7r−4≥ 4r+2
tia_tia [17]

Answer:

The solution is:

-7r-4\ge \:\:4r+2\quad \::\quad \:\begin{bmatrix}\mathrm{Solution:}\:&\:r\le \:\:-\frac{6}{11}\:\\ \:\:\mathrm{Decimal:}&\:r\le \:\:-0.54545\dots \:\\ \:\:\mathrm{Interval\:Notation:}&\:(-\infty \:\:,\:-\frac{6}{11}]\end{bmatrix}

Please check the attached line graph below.

Step-by-step explanation:

Given the expression

-7r-4\ge \:4r+2

Add 4 to both sides

-7r-4+4\ge \:4r+2+4

Simplify

-7r\ge \:4r+6

Subtract 4r from both sides

-7r-4r\ge \:4r+6-4r

Simplify

-11r\ge \:6

Multiply both sides by -1 (reverses the inequality)

\left(-11r\right)\left(-1\right)\le \:6\left(-1\right)

Simplify

11r\le \:-6

Divide both sides by 11

\frac{11r}{11}\le \frac{-6}{11}

Simplify

r\le \:-\frac{6}{11}

Therefore, the solution is:

-7r-4\ge \:\:4r+2\quad \::\quad \:\begin{bmatrix}\mathrm{Solution:}\:&\:r\le \:\:-\frac{6}{11}\:\\ \:\:\mathrm{Decimal:}&\:r\le \:\:-0.54545\dots \:\\ \:\:\mathrm{Interval\:Notation:}&\:(-\infty \:\:,\:-\frac{6}{11}]\end{bmatrix}

Please check the attached line graph below.

7 0
2 years ago
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