A recent survey found that 58% of U.S. adults use their smartphones to research and shop for products online. The sample statistic had a margin of error of 5.3%. Which of the following is the best interpretation of these results? a. Exactly 58% of all U.S adults use their smartphones to research and shop for products online. b. We are confident that the difference between the sample proportion and population proportion of U.S adults who use their smartphones to research and shop for products online is at least 5.3%. c. We are confident that the difference between the sample proportion and population proportion of U.S. adults who use their smartphones to research and shop for products online is exactly 5.3%. d. We are confident that the difference between the sample proportion and population proportion of U.S. adults who use their smartphones to research and shop for products online is at most 5.3%.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
A recent survey found that 58% of U.S. adults use their smartphones to research and shop for products online. The sample statistic had a margin of error of 5.3%. Which of the following is the best interpretation of these
results?
a. Exactly 58% of all U.S adults use their smartphones to research and shop for products online.
b. We are confident that the difference between the sample proportion and population proportion of U.S adults who use their smartphones to research and shop for products online is at least 5.3%.
c. We are confident that the difference between the sample proportion and population proportion of U.S. adults who use their smartphones to research and shop for products online is exactly 5.3%.
d. We are confident that the difference between the sample proportion and population proportion of U.S. adults who use their smartphones to research and shop for products online is at most 5.3%.
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