a programmer plans to develop a new software system. In planning for the operating system that he will​ use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99​% confident that his estimate is in error by no more than three percentage points? Complete parts​ (a) through​ (c) below.   ​a) Assume that nothing is known about the percentage of computers with new operating systems. n =  b) Assume that a recent survey suggests that about 98​% of computers use a new operating system. n =  c) Does the additional survey information from part​ (b) have much of an effect on the sample size that is​ required?

Q: programmer plans to develop a new software system. In planning for the operating system that he will…

A:

Q: When an analytical chemist uses the word precision when referring to the data obtained from an…

A: Precision is the closeness of the measurements to each other, whereas accuracy is the closeness of…

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A:

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: Given that  Margin of error=E=5%=0.05 80% confidence

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: (a) Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use…

Q: Some states now allow online gambling. As a marketing manager for a​ casino, you need to determine…

A: Given Data : Margin of error: ME = 0.02 sample proportion: p̂ = 0.5…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Here the parameter, p determines the true proportion (or percentage) of the computers that use a new…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given: Margin of error = 4% Confidence level = 99%

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: Here is a chart showing how many people are non-smokers, occasional smokers, and heavy smokers by…

A: Note:Hey there! Thank you for the question. Since you have posted two different questions together,…

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: Given, Confidence level, C = 95% = 0.95So, level of significance, α = 1-0.95 = 0.05Margin of error,…

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: From the provided information, Margin of error (E) = 0.06 Confidence level = 80% Assuming the…

Q: - A programmer plans to develop a new software system. In planning for the operating system that he…

A: given data 90% confidence interval for p. E = 0.05n = ?

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: When we don't have any prior information about population proportion, we generally take it as 0.50.…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: From the provided information, Margin of error (E) = 0.05 Confidence level = 90% Assuming the sample…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Sol:- Given Margin of Error = E = 0.02 For 99% Confidence Interval  zα/2=2.576

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given Margin of error=0.05 At 95% CI=1.96

Q: software system. In planning for the operating system that he will​ use, he needs to estimate the…

A: Given that  Margin of error =E =5%=0.05

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: a) Consider the proportion as 0.5. Computation of critical value: 1-α=0.95α=0.05α2=0.0251-α2=0.975…

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: Here given that confidence interval = 95%Margin of error = 5% = 0.05assuming sample is large enough…

Q: programmer plans to develop a new software system. In planning for the operating system that he…

A: (a) Given that , The confidence level is, C = 95% = 95/100= 0.95 The level of significance is, α =…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Here the proportion of people liking dark chocolate is 37% with a margin of error 2.5%  So, the…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given: Confidence level = 99% Significance level α = 1-0.99                             α = 0.01…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given,Margin of error(E)=0.05α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Given data,E=3%=0.03Z-value at 90% confidence is Zc=1.645

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: 90% confidence interval His estimate within 8%