If there are five different breads, eight meats, five cheeses, and five special sauces, how many different sandwiches are possib
1 answer:
Answer:
There are 1000 different sandwiches possible.
Step-by-step explanation:
The number of breads available is, 5.
The number of meats available is, 8.
The number of cheese available is, 5.
The number of special sauces available is, 5.
Assuming that a person is allowed 1 selection of each category.
The possible number of sandwiches that can be made is:
Thus, there are 1000 different sandwiches possible.
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Answer:
a) Statistic.
b) The population proportion is expected to be between 0.29 and 0.31 with a 94% degree of confidence.
Step-by-step explanation:
a) The proportion of 30% is a statistic, as it is a value that summarizes data only from the sample taken in the study from USA Today. Other samples may yield different proportions.
b) We can use the statistic to estimate a confidence interval for the parameter of the population.
The standard error for the proportion is calculated as:
The margin of error is 0.01. We can use this value to determine the level of confidence that represents.
The formula for the margin of error is:
This z-value, according to the the standard normal distribution, corresponds to a confidence interval of 94%.
The interval for this margin of error is:
Then, we can conclude that the population proportion is expected to be between 0.29 and 0.31 with a 94% degree of confidence.
