Question 1

The use of statistical tests increased the need for use of theory, predetermined hypotheses, and common sense.

Accepted Answer

Statistical tests are used to test hypotheses, which are based on theories and commonly accepted ideas. Therefore, the use of statistical tests increases the need for theory, predetermined hypotheses, and common sense.

Question 2

The chi-square statistical test will not reveal whether the differences noted in the table are real or could be merely due to chance.

Accepted Answer

The chi-square statistical test is specifically designed to determine whether the differences observed in a contingency table are statistically significant or could have occurred by chance.

Question 3

Data analysis is a value-adding activity.

Accepted Answer

Data analysis helps to extract insights and knowledge from data, providing valuable information for decision-making and strategic planning. It can improve efficiencies, identify opportunities and risks, and ultimately create value for businesses and organizations.

Question 4

The most important outcome of the data analysis process is

Accepted Answer

The most important outcome of the data analysis process is better decision making. While more information, implications, and alternative solutions may be generated through data analysis, the ultimate goal of analyzing data is to make better decisions based on the insights gleaned from the data.

Question 5

The term _____ covers a huge number of techniques, statistical programs, and processes that can be applied to the results generated by the data collection instruments used in research

Accepted Answer

Data analysis involves the use of various techniques and statistical programs to analyze and interpret data collected during research. This includes methods such as descriptive statistics, regression analysis, and hypothesis testing, among others. Data analysis is a vital component of research, as it helps to make sense of the data and draw meaningful conclusions. The other options (B, C, D) are not as relevant or comprehensive in describing the process of analyzing research data.

Question 6

Which of the following represents the correct sequence of data analysis outcomes?

Accepted Answer

The correct sequence is: information is analyzed to understand implications, which then leads to identifying decision alternatives, and finally making decisions.

Question 7

Data bits combined with each other generate

Accepted Answer

Data bits are individual pieces of information, but when combined and organized, they become meaningful and generate information. Implications, associations, and decision alternatives are all possible results of analyzing and interpreting information, but they are not directly generated by the combination of data bits.

Question 8

A plan of data analysis consists of all of the following except

Accepted Answer

Writing proper research questions is part of the research design and planning phase, not the data analysis plan. The data analysis plan focuses on how to analyze data to answer research questions and test hypotheses, including the execution of analyses and interpretation of results.

Question 9

Which of the following statements is true? If only a portion of the respondents answered a specific question, the frequency distribution (percentage) of the responses for that question is best computed as

Accepted Answer

The frequency distribution (percentage) should only be computed based on the respondents who actually answered the question, not the entire sample population. This will provide a more accurate representation of the responses for the question in question.

Question 10

In terms of frequency distributions and percentages,

Accepted Answer

When calculating the average of percentages, it is important to weight them by the size of the sample that responded to the question. This is because the percentages represent a proportion of the sample that responded to the question, and a larger sample size will have a greater impact on the overall average percentage. It is not necessary to always report percentages in descending order or to include the percentage who do not answer a question.

Question 11

If 100 out of 1000 users of brand A were medium users (i.e., 10%), and 200 respondents out of 400 users of brand B were medium users (i.e., 50%), the average number of medium users for brands A and B would be

Accepted Answer

The answer of If 100 out of 1000 users of...

Question 12

In terms of frequency distributions and percentages, if respondents are asked to "check all that apply" then the percentages reported in the tables

Accepted Answer

The percentages may add up to more than 100% since respondents are allowed to choose multiple options.

Question 13

In terms of frequency distributions and percentages,

Accepted Answer

Percentages should be interpreted with caution when the base of their computation is very small. For example, stating that 100% of a sample of 2 people answered "yes" to a question may not be representative of a larger population. Therefore, it is important to consider the sample size when interpreting percentages. The other options are not accurate statements.

Question 14

For nominal data, the measure(s) of central tendency and dispersion that can be computed is(are)

Accepted Answer

Nominal data only has categories or labels, so the only measure of central tendency that can be computed is the mode. There is no way to calculate the mean or median for this type of data. Similarly, there is no way to calculate a standard deviation or other measure of dispersion.

Question 15

For ordinal data, the measure(s) of central tendency and dispersion that can be computed is(are)

Accepted Answer

Since ordinal data only indicates the order of values but not their difference in magnitude, the only appropriate measures of central tendency and dispersion are mode and median. Mean and standard deviation are not appropriate as they require interval or ratio data. Geometric and harmonic mean are also not applicable for ordinal data.

Question 16

For interval data, the measure(s) of central tendency and dispersion that can be computed is(are)

Accepted Answer

Interval data allows for the calculation of mode, median, mean, and standard deviation as measures of central tendency and dispersion.

Question 17

For ratio data, the measure(s) of central tendency and dispersion that can be computed is(are)

Accepted Answer

Ratio data allows for the computation of more descriptive statistics than just mode or median. Mean, standard deviation, geometric mean, and harmonic mean can also be calculated, making option C the best choice.

Question 18

The ____ is the most frequently occurring response.

Accepted Answer

The mode is the value that appears most frequently in a data set. Therefore, it is the most frequently occurring response. The mean and median may be useful measures of central tendency, but they do not necessarily indicate the most common response. The standard deviation is a measure of the variability or spread of a data set, and is not related to identifying the most frequent response.

Question 19

The ____ is the response that separates the top half of the response frequencies from the bottom half.

Accepted Answer

The median is the value that separates the top half of the response frequencies from the bottom half. The mean and mode are not necessarily representative of the central tendency of the data, and the standard deviation measures the spread of the data, not the separation of the response frequencies.

Question 20

The ____ is the average of the responses computed by summing all responses and dividing by the number of responses.

Accepted Answer

The mean is the measure of central tendency that is calculated by adding all responses together and dividing by the number of responses. This gives an average or typical value of the responses.

Quiz 11: Analyzing and Interpreting Data for Decisions

The use of statistical tests increased the need for use of theory, predetermined hypotheses, and common sense.

The chi-square statistical test will not reveal whether the differences noted in the table are real or could be merely due to chance.

Data analysis is a value-adding activity.

The most important outcome of the data analysis process is

The term _____ covers a huge number of techniques, statistical programs, and processes that can be applied to the results generated by the data collection instruments used in research

Which of the following represents the correct sequence of data analysis outcomes?

Data bits combined with each other generate

A plan of data analysis consists of all of the following except

Which of the following statements is true? If only a portion of the respondents answered a specific question, the frequency distribution (percentage) of the responses for that question is best computed as

In terms of frequency distributions and percentages,

If 100 out of 1000 users of brand A were medium users (i.e., 10%) , and 200 respondents out of 400 users of brand B were medium users (i.e., 50%) , the average number of medium users for brands A and B would be

In terms of frequency distributions and percentages, if respondents are asked to "check all that apply" then the percentages reported in the tables

In terms of frequency distributions and percentages,

For nominal data, the measure(s) of central tendency and dispersion that can be computed is(are)

For ordinal data, the measure(s) of central tendency and dispersion that can be computed is(are)

For interval data, the measure(s) of central tendency and dispersion that can be computed is(are)

For ratio data, the measure(s) of central tendency and dispersion that can be computed is(are)

The ____ is the most frequently occurring response.

The ____ is the response that separates the top half of the response frequencies from the bottom half.

The ____ is the average of the responses computed by summing all responses and dividing by the number of responses.