1. California is the most populated state with a population of 38,332,521 (as reported by the U.S. Census Bureau). Find the sample size required for a survey intended to estimate the percentage of adults in California who prefer to get their news online. Assume a confidence level of 95% and a margin of error of 3.5 percentage points.

Q: 2. A random sample of 85 group leaders, supervisors, and similar personal revealed that a person…

A: Introduction: The approach to determining the population distribution average is by utilizing a…

Q: people in the age group 18-29 and 1500 people in the age group 30-55. The sample proportions of…

A: Given : Given : n1 = 1000 n2 = 1500 confidence level,c=0.95 Significance…

Q: 71 S4 4 Aphilantvopic organization knows that s donors have an average age near 60 and is…

A:

Q: According the the U.S. Census bureau, the percentage of Santa Ana residents living in poverty is…

A: Given: p^1=0.177p^2=0.133n1=1200n2=1500

Q: Solve this attachment.

A: Given: Margin of error (E)= 30 The 99% confidence interval is (0.20, 0.21) The value of p is…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 34%. Given the…

A: Given,Past studies have indicated that the percentage of smokers was estimated to be about 34%. That…

Q: Federal Aviation Administration The airlines were asked to weigh adult passengers and carryon bags…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: 5. Still unconvinced, you calculate a 95% confidence interval to estimate the percentage of…

A: The objective of this question is to calculate a 95% confidence interval for the percentage of…

Q: Background The Food and Drug Administration (FDA) tries to find out whether there is a relation…

A: The Food and Drug Administration (FDA) tries to find out whether there is a relation between the…

Q: What are two ways to get a narrower confidence interval for a proportion?

A: Two ways to get a narrower confidence interval for a proportion are:

Q: Identify an appropriate statistical test and the tail of the test for the following problems. Assume…

A: Note: Hey there! Thank you for the question. As you have posted several sub-parts of a question,…

Q: adults who file their taxes at least two weeks before the April 15th deadline, a 99% confidence…

A: From the above data  Third option is correct 3. I only I. 0.789 to 0.871

Q: Construct a 90% Confidence Interval based on the following data: 45, 55, 67, 45, 68, 79, 98, 87, 84,…

A: Given: The data provided is: 45,55,67,45,68,79,98,87,84,82 We need to construct a 90% confidence…

Q: In almost all research studies, data are obtained from samples. A. True в. False

A: In almost all the research studies ,data are obtained from the samples  True  False

Q: 30. Robberies Find the sample size needed to estimate the percentage of robberies in Texas that…

A:

Q: 2. Determine the level of significance and the direction of test. 3. Test Statistics:

A: Given : n1=44 n2=36 S1=4.35 S2=3.97