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Hi Grantingriver, thank you for the assistance on my previous question. I now also have a question related to interval estimation.
The information is as follow:
In 1938, the first bottling company opened in Johannesburg and the Coca-Cola Export Corporation set up a permanent operation in South Africa, with plants being built in Auckland Park and Durban. The first bottling operation to open in Cape Town was in Paarden Eiland in 1940. Today, over 12 000 people in South Africa, work for Coca-Cola. The inspection division of Peninsula Beverages Weights and Measures Department is interested in estimating the actual amount of soft drink that is placed in their 2-litre bottles at the local bottling plant in Cape Town. The bottling plant has informed the inspection division that the standard deviation for 2-litre bottles is 0.05 litres. A random sample of 100 2-litre bottles obtained from this bottling plant indicates a sample average of 1.99 litres.
How do I find the
a) a 95% confidence interval for the population mean (u).
b) he length of the confidence interval.
Thanking anyone for you response and help or guidance in advance!
Good morning everyone. I also have a question probability related.
The information is as follow:
In 1938, the first bottling company opened in Johannesburg and the Coca-Cola Export Corporation set up a permanent operation in South Africa, with plants being built in Auckland Park and Durban. The first bottling operation to open in Cape Town was in Paarden Eiland in 1940. Today, over 12 000 people in South Africa, work for Coca-Cola. The inspection division of Peninsula Beverages Weights and Measures Department is interested in estimating the actual amount of soft drink that is placed in their 2-litre bottles at the local bottling plant in Cape Town. The bottling plant has informed the inspection division that the standard deviation for 2-litre bottles is 0.05 litres. A random sample of 100 2-litre bottles obtained from this bottling plant indicates a sample average of 1.99 litres.
a) Find a 95% confidence interval for the population mean (u).
b) Calculate the length of the confidence interval
Is there anyone that will be able to assist?
Hi.I am struggling with the following questions.
Anyone perhaps good with Business Statistics?Please help if you can.The scenario and question is as follow.
A coffee dispensing machine used in most cafeterias is set to dispense coffee with an average fill of 230 ml and a variance of 100ml per cup. Assuming the volume dispensed is normally distributed, calculate the following (rounded to three decimals):
(a) The probability of the dispenser filling a cup to more than 235 ml. (3)
(b) The probability of the dispenser filling a cup between 235 and 245 ml. (4)
(c) If 350 cups were filled by this coffee dispenser, what is the expected number of cups that will be filled to less 235 ml
Thank you very much Grantingriver ?
Any one good in business statistics?I am struggling with probability.
I have a one question that I am struggling with : the question is as follows.
The probability that a flight departs on time in 0.83 and the probability that it arrives on time is 0.92. The probability that the flight arrived on time given that it departed on time is 0.94 (rounded off to two decimals).
1.What is the probability that the flight did not arrive on time
2.What is the probability that the flight arrived and departed on time
3.What is the probability that the flight departed on time given that it has arrived on time?
4.What is the probability that the flight either arrived or departed on time
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