(b-2) Specify the decision rule at α = .05. (A negative value should be indicated by a minus sign. Round your answers to 2 decimal places.) Reject the null hypothesis if zcalc >_______ or zcalc < ________. (b-3) Find the test statistic zcalc. (A negative value should be indicated by a minus sign. Do not round the intermediate calculations. Round your answer to 4 decimal places.)
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 ski company in Vail owns two ski shops, one on the east side and one on the west side. Sales data showed that at the eastern location there were 65 pairs of large gloves sold out of 320 total pairs sold. At the western location there were 150 pairs of large gloves sold out of 564 total pairs sold.
(a) Calculate the sample proportion of large gloves for each location. (Round your answers to 4 decimal places.)
| Sample proportion | ||
| Ski shops on the east side | ||
| Ski shops on the west side | ||
At α = .05, is there a significant difference in the proportion of large gloves sold?
(b-2) Specify the decision rule at α = .05. (A negative value should be indicated by a minus sign. Round your answers to 2 decimal places.)
Reject the null hypothesis if zcalc >_______ or zcalc < ________.
(b-3) Find the test statistic zcalc. (A negative value should be indicated by a minus sign. Do not round the intermediate calculations. Round your answer to 4 decimal places.)
zcalc ______
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