A restaurant manager wants to know if one of the three specials on the menu (baked fish, roast beef, or chicken salad) is more popular than the others. She selects a random sample of special orders and counts the number of orders in each category. The results are compiled in the following table. Beef Chicken Fish 48 46 53 Select the appropriate null hypothesis for this experiment One meal is less popular than the other two. There is no difference in popularity among the three meals. One meal is more popular than the other two. Customers prefer the baked fish to the roast beef.
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 restaurant manager wants to know if one of the three specials on the menu (baked fish, roast beef, or chicken salad) is more popular than the others. She selects a random sample of special orders and counts the number of orders in each category. The results are compiled in the following table.
Beef | Chicken | Fish |
48 | 46 | 53 |
Select the appropriate null hypothesis for this experiment
One meal is less popular than the other two. |
||
There is no difference in popularity among the three meals. |
||
One meal is more popular than the other two. |
||
Customers prefer the baked fish to the roast beef. |
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