Mathematics, 03.04.2020 18:02 dbanks701

A researcher obtained a random sample of 100 smokers and a random sample of 100 nonsmokers. After interviewing all 200 participants in the study, the researcher compared the rate of depression among the smokers with the rate of depression among nonsmokers.
a. Is this a designed experiment or an observational study?
b. Identify the explanatory and response variables.

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 14:40

What is the measure of ac? 5 units 13 units 26 units 39 units

Answers: 3

Answer

Mathematics, 21.06.2019 16:50

The table represents a linear function. what is the slope of the function? –6 –4 4 6

Answers: 3

Answer

Mathematics, 21.06.2019 17:00

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Answers: 1

Answer

Mathematics, 21.06.2019 18:30

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

Answers: 1

Answer

You know the right answer?

A researcher obtained a random sample of 100 smokers and a random sample of 100 nonsmokers. After in...

Questions

Mathematics, 18.03.2020 21:39

A bird feeder hold 3/4 quarts of bird seed. Your scooper holds 3/8 cups of birdseed. How many scoops will fill the bird feeder...

Chemistry, 18.03.2020 21:39

Use the following equation for the combustion of methane to answer the following questions: CH4 + 2O2 -> CO2 +2 H2O ΔH = -900 kJ...

Mathematics, 18.03.2020 21:39

How can you rewrite (z 5-1.75) in order to find the answer? O P(z$1.75) O o P(Z2-1.75) 1 - P(75-1.75)...

Mathematics, 18.03.2020 21:39

A plot of land doubles in size by adding x meters to the length and xmeters to the width of the land. If the original plot had an area of 200 by...

History, 18.03.2020 21:39

Who was the NEW president going to be after Adams?...

Business, 18.03.2020 21:39

If you make a commitment to continuous self-improvement, you will be displaying this core value:...

Mathematics, 18.03.2020 21:39

Using what you know about angle relationships, which equation could be used to find the value of x? A) 4.6x + 14.4 = 360 B) 4.6x + 14.4 = 180 C) 3.6x...

Computers and Technology, 18.03.2020 21:39

Write a c++ program to calculate the approximate value of pi using this series. The program takes an input n that determines the number of values we a...

Mathematics, 18.03.2020 21:39

What is the measure of angle DBF? WILL GIVE BRAINLIEST!

Engineering, 18.03.2020 21:39

If the two 304-stainless-steel carriage bolts of the clamp each have a diameter of 10 , and they hold the cylinder snug with negligible force against...

Physics, 18.03.2020 21:39

A disk 7.98 cm in radius rotates at a constant rate of 1 250 rev/min about its central axis. (a) Determine its angular speed. rad/s (b) Determine the...

Business, 18.03.2020 21:39

The Quick Buck Company is an all-equity firm that has been in existence for the past three years. Company management expects that the company will las...

Biology, 18.03.2020 21:39

Sequence of amino acids in a polypeptide chain of protein molecule coresponds to the sequence of nucleotides on mRNA for that protein. If reading fram...

Physics, 18.03.2020 21:39

The largest salami in the world was made in Norway. If a hungry mouse ran around the salami's circumference with a tangential speed of 0.17 m/s, the c...

Chemistry, 18.03.2020 21:39

Identify a chemical property of each item listed in question 15...

Mathematics, 18.03.2020 21:39

DATA2. Use the information in the 20-Pound Watermelon toPart AIf there are twenty-eight 8-ounce servings in a20-pound watermel...

English, 18.03.2020 21:39

Past and Past participle of: fly * i need help please...

Mathematics, 18.03.2020 21:39

Each one of the rectangles that make up the three dimensional figure is called a ___....

Mathematics, 18.03.2020 21:39

A group of randomly selected Clyde Marketing employees were asked what their most common form of transportation is. The bar graph below shows the resu...

Mathematics, 18.03.2020 21:39

Write the equation in slope-intercept form: -10x + 2y = 14 *...

More questions: Mathematics Another questions