Describing level of significance

Assignment Help Basic Statistics

Reference no: EM13112850

1. When we say we have a confidence level of 95%, what do you think our "margin of error" is?

2. If we move the level of confidence from 95 to 99%, what will happen to our margin of error? What will happen to the width of our confidence interval?

3. Would we have gotten a better feel for the amount of flour needed if we'd used a larger sample? Why (mathematically) would this happen?

Reference no: EM13112850

Questions Cloud

Determine observational study or an experiment : Significant increase in the mortality of lung cancer in both genders, but no significant effect was observed at lower levels." Is this an observational study or an experiment? Fully explain your reasoning.

Real life hypothesis example : There used to be an ad on TV that claimed one toothpaste was proven to be more effective in fighting tooth decay than another. One of statistics professors was interested in the study, and after 6 ads finally got the address to write away for it f..

Determine the pressure in the tank : A fifty litres container of stainless steel was charged with 5.00 atm of H2(hydrogen gas) and 6.00 atm of O2(oxygen gas). A spark ignited this mixture (hydrogen gas & oxygen gas)

Illustrate what is the crash cost and is the total project : If the management want to crash the cost to the maximum, which activities should be crashed, illustrate what is the crash cost and illustrate what is the total project cost?

Describing level of significance : When we say we have a confidence level of 95%, what do you think our "margin of error" is? If we move the level of confidence from 95 to 99%, what will happen to our margin of error? What will happen to the width of our confidence interval?

Determine the expected value if person buys one ticket : In a raffle, 1,000 tickets are sold for $2 each. One ticket will be randomly selected and the winner will receive a laptop computer valued at $1200. What is the expected value if a person buys one ticket?

Evaluate gibbs free energy : You need to determine value of ?G° for CO(NH2)2(s) + H2O(l) CO2(g) + 2NH3(g)?

Illustrate what are three ways it has helped the hospitality : Explain how can an industry measure its success of applying the co alignment principle? Illustrate what are three ways IT has helped the hospitality industry?

Description of hypothesis testing questions : The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart.

User Account

All Pages