Determine whether the sampling is dependent or independent. Indicate whether the response variable is qualitative or...
Determine whether the sampling is dependent or independent. Indicate whether the response variable is qualitative or quantitative.
A researcher randomly selected 100 adults aged 18-25 and 100 adults aged 50-60. Within each age group, she recorded the number of smokers.
A.
qualitative, independent
B.
qualitative, dependent
C.
quantitative, independent
D.
quantitative, dependent
Homework Answers
She has recorded a number of smoker’s that means there is two number. One from 18-25 group another is from 50-60 aged group. So, it is a quantitative variable. We can’t judge a smoking behavior of person in any group by using another variable. So, it is a completely independent variable.
So option C is correct.
C
quantitative, independent .
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Determine whether the sampling is dependent or independent.
Indicate whether the response variable is qualitative or...
3. Determine whether the following sampling is dependent or independent. Indicate whether the response variable is...
3. Determine whether the following sampling is dependent or independent. Indicate whether the response variable is qualitative or quantitative. A researcher wishes to compare personality types of married pharmacists and their spouses. She obtains a random sample of 187 such couples who take a personality inventory and determines each spouse's personality type. Determine whether the following sampling is dependent or independent. O A. The sampling is dependent because an individual selected for one sample does not dictate which individual is...
Determine whether the sampling is dependent or independent. Indicate whether the response variable is qualitative or...
Determine whether the sampling is dependent or independent. Indicate whether the response variable is qualitative or quantitative. A psychologist wants to measure the effect of music on memory. He randomly selects 80 students and measures their scores on a memory test conducted in silence. The next day he measures their scores on a similar test conducted while classical music is playing. The mean score without music is compared to the mean score with music. A. quantitative, independent B. quantitative, dependent...
3. For the following cases, determine whether the sampling is dependent or independent a. In a test o f manual dext...
3. For the following cases, determine whether the sampling is dependent or independent a. In a test o f manual dexterity, volunteers are asked to twist a small rod with either their dominant hand or eir non-dominant hand (selected at random). Then they repeat the procedure with their other hand. The purpose of the test is to determine which hand can spin the rod faster. b. A person's protein requirement is the amount of protein they must consume in a...
U 4 5 The data table represents the measure of a variable before and after a...
U 4 5 The data table represents the measure of a variable before and after a treatment. Does the sample evidence suggest Individual that the treatment is effective in decreasing the value of the response variable? Use the c = 0.10 level of significance. Before, Xi Complete parts (a) through (d). 2 3 30 53 40 47 40 After, Yi 37 33 50 46 35 (a) What type of test should be used? Choose the correct answer below. O A....
Suppose television advertisers want to know if age plays a role in people's response to a...
Suppose television advertisers want to know if age plays a role in people's response to a rather unconventional ad that may be aired during the next Super Bowl. The ad is shown to a variety of viewers. Keeping in mind that the explanatory variable is not necessarily the first one mentioned, classify each of the following possible approaches as involving one of these relationships: • C → C: categorical explanatory variable and categorical response variable • C → Q: categorical...
1. For each of the following random variables, determine whether the variable is quantitative or qualitative....
1. For each of the following random variables, determine whether the variable is quantitative or qualitative. Further classify those variables as discrete/continuous or ordinal/nominal (a) Number of telephones per householod (b) Whether there is a fax machine in the household (c) Length (in minutes) of longest local call per month (d) Total time spent on online purchases in a month (e) Educational level of a person 2. It is believed that exercising can lower blood pressure. A medical researcher who...
A mass communications researcher collaborates with a developmental psychologist to determine whether the type of media...
A mass communications researcher collaborates with a developmental psychologist to determine whether the type of media affects different age groups’ memory for news events. Enter the following data into an SPSS data file: Age (Factor A) Child Middle-Aged Older Media (Factor B) TV 14 27 24 15 23 25 16 24 24 20 28 23 Child Middle-Aged Older Internet 25 22 13 23 24 15 24 21 14 22 25 18 Use the data to: Create a line graph of...
Researchers are interested in the effectiveness of a new allergy medication; they want to know whether...
Researchers are interested in the effectiveness of a new allergy medication; they want to know whether the medication will reduce the severity of allergy symptoms. Researchers also want to know which method of delivery is best pill, skin patch, or nasal mist). They collect a volunteer sample of 120 adults (aged 20 - 50) who are experiencing allergy symptoms. They randomly assign 60 adults to the placebo and 60 adults to the active drug. From each group of 60 they...
i need #23 & 25 please Use critical thinking to determine whether the sampling method appears...
i need #23 & 25 please
Use critical thinking to determine whether the sampling method appears to be sound or is flawed. Points: 5 23) "38% of adults in the United States regularly visit a doctor". This conclusion was reached by a college student after she had questioned 520 randomly selected members of her college a) How does this survey appear to be flawed? b) How could you design the survey so that it is not flawed? Use the given...
A study was conducted to determine success rates of students enrolled in the Statistics courses o...
A study was conducted to determine success rates of students
enrolled in the Statistics courses offered at South Plains College
for the fall semester of 2015. A random sample of 14 students was
taken, and we recorded each
student’s age, final average, gender, # hours worked per week,
race, and the attendance record (# of classes not attended this
semester). Use the results from the following table to answer all
parts of #2
f. For the age variable, construct 3...
3. Determine whether the following sampling is dependent or independent. Indicate whether the response variable is qualitative or quantitative. A researcher wishes to compare personality types of married pharmacists and their spouses. She obtains a random sample of 187 such couples who take a personality inventory and determines each spouse's personality type. Determine whether the following sampling is dependent or independent. O A. The sampling is dependent because an individual selected for one sample does not dictate which individual is...
3. For the following cases, determine whether the sampling is dependent or independent a. In a test o f manual dexterity, volunteers are asked to twist a small rod with either their dominant hand or eir non-dominant hand (selected at random). Then they repeat the procedure with their other hand. The purpose of the test is to determine which hand can spin the rod faster. b. A person's protein requirement is the amount of protein they must consume in a...
U 4 5 The data table represents the measure of a variable before and after a treatment. Does the sample evidence suggest Individual that the treatment is effective in decreasing the value of the response variable? Use the c = 0.10 level of significance. Before, Xi Complete parts (a) through (d). 2 3 30 53 40 47 40 After, Yi 37 33 50 46 35 (a) What type of test should be used? Choose the correct answer below. O A....
1. For each of the following random variables, determine whether the variable is quantitative or qualitative. Further classify those variables as discrete/continuous or ordinal/nominal (a) Number of telephones per householod (b) Whether there is a fax machine in the household (c) Length (in minutes) of longest local call per month (d) Total time spent on online purchases in a month (e) Educational level of a person 2. It is believed that exercising can lower blood pressure. A medical researcher who...
Researchers are interested in the effectiveness of a new allergy medication; they want to know whether the medication will reduce the severity of allergy symptoms. Researchers also want to know which method of delivery is best pill, skin patch, or nasal mist). They collect a volunteer sample of 120 adults (aged 20 - 50) who are experiencing allergy symptoms. They randomly assign 60 adults to the placebo and 60 adults to the active drug. From each group of 60 they...
i need #23 & 25 please
Use critical thinking to determine whether the sampling method appears to be sound or is flawed. Points: 5 23) "38% of adults in the United States regularly visit a doctor". This conclusion was reached by a college student after she had questioned 520 randomly selected members of her college a) How does this survey appear to be flawed? b) How could you design the survey so that it is not flawed? Use the given...
A study was conducted to determine success rates of students
enrolled in the Statistics courses offered at South Plains College
for the fall semester of 2015. A random sample of 14 students was
taken, and we recorded each
student’s age, final average, gender, # hours worked per week,
race, and the attendance record (# of classes not attended this
semester). Use the results from the following table to answer all
parts of #2
f. For the age variable, construct 3...
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