Question

In: Economics

A marketing research firm is hired to measure political preferences of women. The firm did all...

A marketing research firm is hired to measure political preferences of women. The firm did all the sampling on a Thursday afternoon in front of the most exclusive shop in the mall. What type of sampling was used by the marketing research firm? Do you think the results will be accurate? If not, what would you have done differently? Thoroughly explain your answer.

Solutions

Expert Solution

Convenience sample: The researcher chooses a sample that is readily available in some non-random way.

Example—A researcher polls people as they walk by on the street.

Why it's probably biased: The location and time of day and other factors may produce a biased sample of people.

In this case, researcher has used convenience sampling method. The results won't be accurate, because the researcher collected his sample according to his convenience not for the sake of the research.

For the effectiveness of this research, the data should be collected from women irrespective to their income. In malls there may be upper or middle class women. So for accurate results lower class people should also participate in the survey.

For that, stratified random sample is good.

Stratified random sample: The population is first split into groups. The overall sample consists of some members from every group. The members from each group are chosen randomly.

Example— In the survey, we can divide the women according to income and collect data for each and gather.

Why it's good: A stratified sample guarantees that members from each group will be represented in the sample, so this sampling method is good when we want some members from every group.


Related Solutions

Question 1 The governor of Kansas hired a research firm to conduct a survey to measure...
Question 1 The governor of Kansas hired a research firm to conduct a survey to measure support for abolishing the death penalty among Kansas legislators. The firm contacted and interviewed all 125 members of the Kansas Legislature and concluded that 45% favored abolishing the death penalty and 55% opposed abolishing it. These results are: Descriptive statistics Inferential statistics Neither descriptive or inferential statistics There is no way to tell if these statistics are inferential or descriptive. Question 2 The governor...
]: A marketing research analyst is interested in determining if consumer preferences between brand 1 and...
]: A marketing research analyst is interested in determining if consumer preferences between brand 1 and brand 2 are different. The research analyst successfully recruits 9 consumers to participate in a focus group to determine preferences. After a conducting series of questionnaires and discussions, the analyst determines that 7 of the consumers prefer brand 1, and the remaining consumers prefer brand 2. The analyst records preferences as +1 for consumers who preferred brand 1, and -1 for people who preferred...
You are the marketing firm hired by amazon to creat a new marketing plan in its...
You are the marketing firm hired by amazon to creat a new marketing plan in its acquisition of whole foods. This focuses on the acquisition What does amazon need to do to reposition itself for future success in the grocery market now that it has acquired whole foods
A consultant was hired to build an optimization model for a large marketing research company. The...
A consultant was hired to build an optimization model for a large marketing research company. The model is based on a consumer survey that was taken in which each person was asked to rank 30 new products in descending order based on their likelihood of purchasing the product. The consultant was assigned the task of building a model that selects the minimum number of products (which would then be introduced into the marketplace) such that the first, second, and third...
MULTI STEP PROBLEM PLEASE ANSWER ALL. A marketing research firm would like to do a survey...
MULTI STEP PROBLEM PLEASE ANSWER ALL. A marketing research firm would like to do a survey for one of their clients. The survey is for a local newspaper that would like to know how effective its advertising strategy has been for a new publication. the cost for surveying is $11 for a low income household, $8.5 for middle income household and $9.5 for a high income household. The survey must include at 300 households. At least 75 must be high...
During the independent research 30 women were chosen to measure their weight. The mean value of...
During the independent research 30 women were chosen to measure their weight. The mean value of weight is 66 kg and it is known from the previous experience that the weight is normally distributed with ? = 10 kg. a) Find a 95% two-sided confidence interval on the mean weight. b) Find a 90% two-sided confidence interval on the mean weight. c) Which interval is wider?
A marketing firm is hired to assess customer satisfaction across different car models. The firm sends...
A marketing firm is hired to assess customer satisfaction across different car models. The firm sends out a survey to new car owners of four new car models. The survey assesses owner satisfaction with the new car on a scale of 1 to 7 (7 = very satisfied with the new car). Make the assignment interesting and name these new cars! Can we draw any conclusions about customer satisfaction of these four different car models?             Car 1                 Car 2                ...
A market research firm is hired to perform a survey and analyze the true proportion of...
A market research firm is hired to perform a survey and analyze the true proportion of the households with pets. How many households should they survey in order to be 90% confident that the estimated (sample) proportion is within two percentage points of the true population? Assume that pq = 0.25
Suppose that a market research firm is hired to estimate the percent of adults living in...
Suppose that a market research firm is hired to estimate the percent of adults living in a large city who have cell phones. 500 randomly selected adult residents in this city are surveyed, 481 responded yes, they own cell phones. Find a 92% confidence interval for the true proportion of adults residents in this city who have a cell phone. Then give a complete confidence statement. Round only the last calculation (both endpoints of the interval) to two decimal places
a market research firm is hired to estimate the percentage of adults living in a large...
a market research firm is hired to estimate the percentage of adults living in a large city who have cell phones. Five hundred randomly selected adults are surveyed to determine whether they have cell phones. Of the 500 people surveyed, 421 responded yes-they own cell phones which interval below is closest to the 95% confidence interval.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT