A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.04 with 95​% confidence if ​(a) she uses a previous estimate of 0.58​? ​(b) she does not use any prior​ estimates?   CRITICAL VALUE = 1.96 per table  Click the icon to view the table of critical values. ​(a) n=     ​(Round up to the nearest​ integer.)   (b)  n= ​(Round up to the nearest​ integer.)

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A: It is given that margin of error (E) is 0.02 and the confidence level is 95%.

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A: Given that Margin of error = E =0.0490% confidence. if not given population proportion then we use…

Q: Suppose that the researchers wanted to estimate the proportion of patients under 50 years old who…

A: Givenpatients under 50 yearsx=15n=81p^=1581=0.185Margin of error(E)=0.03confidence level(c)=95%

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A: The given margin of error is 0.02 and confidence level is 99%.

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: We have to find out answer of given question....

Q: You may need to use the appropriate technology to answer this question. In a study conducted to…

A: a) The null and alternate hypothesis is H0 : μ1=μ2=μ3  HA : Not all the population means are equal…

Q: How many individuals are described in this table? How many females were among the respondents? The…

A: It is given that The individuals are classified according to gender and the question asked about…

Q: Draw a two-tailed normal distribution curve with a significance level of  5%. On your graph identify…

A: We have given that the information about to the normal distribution. Here, need to find out the…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A: (a) At a 95% confidence level, the z value is 1.96 which can be obtained by using the standard…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

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

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A:

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A:

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A:

Q: Mental Health Estimates of the prevalence of Alzheimer’s disease have recently been provided by…

A: From given data we have : P(M77)=0.049P(W76)=0.023P(W82) = 0.078

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given That Margin of error = 3% = 0.03.

Q: What is the margin of error for a 99% CI for a mean, when the sample size is 12, the sample average…

A: Given: Sample size, n = 12 Sample mean, x = 52 Sample standard deviation, s = 13 It follows a…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: The objective of this question is to determine the sample size needed to estimate a population…

Q: A score that is 3 points lower than the sample mean has a z-score of z = -0.25, and a score of X =…

A: Given information: Case-1: z = -0.25  Score (X) = u-3  Sample mean (u) = u  Case-2: z = -0.75  X =…

Q: An epidemiologist wants to estimate the proportion of residents in her city that carry the Hepatatis…

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Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: It is given that Margin of error E = 2% = 0.02 Level of confidence = 98%

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given,margin of error(E)=0.01Assume sample proportion(p^)=0.51-p^=0.5α=1-0.98=0.02α2=0.01Z0.01=2.326…

Q: estimate the proportion 95% confidence if (a) she uses a previous estimate of 0.54? (b) she does not…

A: Given Level of significance ɑ=0.05, margin of error=e=0.05  (a) p=0.54

Q: wishes the estimate to be within 0.04 with 95% confidence if (a) she uses a previous estimate of…

A: We have to find what size sample should be obtained if she wishes the estimate to be within 0.04…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Solution: From the given information, confidence level is 0.90 and E=0.01.

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given: Confidence level = 0.95 Margin of error (E) = 0.015 Assumed sample proportion p^=0.5

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A: Here we need to find the required sample size.

Q: Frequency Frequency Expected 30 Survey Results Company A Company B Company C Observed Number Company…

A: Given that total number of responses N = 200 Survey results Company A               32 Company B…

Q: A pollster wishes to estimate the number of left-handed scientists. How large a sample is needed in…

A: It is given that margin of error (E) is 0.04 and the confidence level is 0.95.

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What…

A:

Q: ou want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: given data , no reasonable estimate for the population proportion. assume that…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.