Question

In: Statistics and Probability

A​ fast-food chain sells drinks that they call HUGE. When we take a sample of 49...

A​ fast-food chain sells drinks that they call HUGE. When we take a sample of 49 drinks and weigh​ them, we find that the mean is 38.9 ounces with a standard deviation of 2.8 ounces. a. A technology input menu for calculating a confidence interval requires the sample​ mean, x overbar​, the sample standard​ deviation, Sx, and the sample​ size, n. State how you would fill in these numbers. b. Report the confidence interval in a carefully worded sentence.

a. Fill in the values below for x overbar​, ​Sx, and n. x overbar : nothing

Solutions

Expert Solution

a).the given data are:-

sample mean () 38.9
sample sd () 2.8
sample size (n) 49

b).degrees of freedom = (n-1) = (49-1)= 48

t critical value for df = 48,alpha=0.05, both tailed test be:-

[ using t distribution table]

the 95% confidence interval for the population mean is:-

interpretation:-

we are 95% confident that the true mean weight of drinks bottle will be within 38.096 ounces and 39.704 ounces

***in case of doubt, comment below. And if u liked the solution, please like.

orchestra answered 2 years ago
Next > < Previous

Related Solutions

A hamburger chain sells large hamburgers. When we take a sample of 40 hamburgers and weigh​...
A hamburger chain sells large hamburgers. When we take a sample of 40 hamburgers and weigh​ them, we find that the mean is 0.52 pounds and the standard deviation is 0.3 pound. Technology Output N 40 Mean 0.52   STDEV. 0.3000 One-Sample T SE Mean 0.0474 95% CI ​(0.4241, 0.61590) a. A technology input menu for calculating a confidence interval requires a sample​ size, a sample​ mean, and a sample standard deviation. State how you would fill in these numbers. Sample...
A&Z is a fast food chain that operates in various branches in the US. A&Z sells...
A&Z is a fast food chain that operates in various branches in the US. A&Z sells their own burger, Potato fries and drinks. The fast food products are supplied by A&Z’s registered suppliers. All food is pre-packed, and A&Z owns the licenses for their pre-packed food which are also supplied to local supermarkets. At fast food branch, the pre-packed food is sold as meals. Customers place their orders online and is delivered by A&Z delivery service. a) There are 6...
Chic-fil-A is a US restaurent fast food chain and the industry is fast food market.Porter's 5...
Chic-fil-A is a US restaurent fast food chain and the industry is fast food market.Porter's 5 force analysis can be applied as below: Bargaining power of buyers: Low: -The number of customer ie the customer base is huge. -Customers have their own taste and choices and they tend to stick to their preferred brands. -Cost of switching is low Bargaining power of Suppliers:Low -Cost cost of switching suppliers -Large number of suppliers available -Lot of substitutes available -Suppliers have short...
Chic-fil-A is a US restaurent fast food chain and the industry is fast food market.Porter's 5...
Chic-fil-A is a US restaurent fast food chain and the industry is fast food market.Porter's 5 force analysis can be applied as below: Bargaining power of buyers: Low: -The number of customer ie the customer base is huge. -Customers have their own taste and choices and they tend to stick to their preferred brands. -Cost of switching is low Bargaining power of Suppliers:Low -Cost cost of switching suppliers -Large number of suppliers available -Lot of substitutes available -Suppliers have short...
A McDonald’s franchise sells many fast-food items including hamburgers, French fries, drinks, etc. It had fixed...
A McDonald’s franchise sells many fast-food items including hamburgers, French fries, drinks, etc. It had fixed costs of $500,000 last year. It had a short-run total variable cost of $726,000, average price of $8, and sold 300,000 food items last year. Raising Cane’s specializes in chicken meals; hence has a limited menu. Last year, it had fixed costs of $200,000 per year, a short-run total variable cost of $199,800, sold 90,000 food items at an average price of $7.00 per...
What are the risks of Food Quality in a fast food restaurant chain? (NO PLAGIARISM, 300...
What are the risks of Food Quality in a fast food restaurant chain? (NO PLAGIARISM, 300 MINIMUM PLEASE)
When selecting a fast food restaurant, we believe the cleanliness of the restaurant is more important...
When selecting a fast food restaurant, we believe the cleanliness of the restaurant is more important for males than females. First, write the null and alternative hypothesis we would use to test this. Second, describe the analysis you would use to test this belief.
Customers at a fast-food restaurant buy both sandwiches and drinks. The mean number of sandwiches is...
Customers at a fast-food restaurant buy both sandwiches and drinks. The mean number of sandwiches is 1.5 with a standard deviation of 0.5. The mean number of drinks is 1.45 with a standard deviation of 0.3. The correlation between the number of sandwiches and drinks purchased by the customer is 0.6. If the profit earned from selling a sandwich is $1.50 and from a drink is $1, what is the expected value and standard deviation of profit made from each...
When would we call the Income Statement the Statement of Operations and when would we call...
When would we call the Income Statement the Statement of Operations and when would we call the Balance Sheet the Statement of Financial Position?
A fast food chain plans to add a new item to its menu. There are three...
A fast food chain plans to add a new item to its menu. There are three possible campaigns for the new menu item. They introduced the product at locations in several randomly selected markets. A different promotion was used at each location, and the weekly sales of the new item are recorded for the first four weeks. Management is interested in determining the differences in the promotion campaigns with regard to total sales. In addition, it wants to know if...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT