Given that the sample proportion of Americans who are dissatisfied with the quality of education is 0.53 and the sample size is 1012. A) Estimate the proportion of local adults who are dissatisfied with the education students receive in kindergarten through grade 12 with 95% confidence and a 5% margin of error. Assume that local adults won't differ drastically from those Gallup used, how many people should be sampled?

Q: When estimating the minimum sample size required for a research, if we do not have the preliminary…

A: It is given that, preliminary estimate of proportion is not known.

Q: What is the approximate sample size required to estimate the percentage of Americans who have earned…

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

Q: A sample of size 80 which found to contain 21 smokers. What is the sample proportion of non-smokers…

A: A population is the complete set of elements for which the study or experiment is conducted. A…

Q: A physical therapist wants to determine the difference in the proportion of men and women who…

A: Given data, P1 = 21.9% = 0.219 P2 = 14.4% = 0.144 E = 2% = 0.02 Z= value at 95% confidence is Zc =…

Q: Based on that, the required sample size to estimate the population mean is equal to?

A: It is given that Margin of error E = 4 Level of confidence = 95% Population SD = 29 The critical…

Q: 1. A dermatologist wishes to estimate the proportion of young adults who apply sunscreen regularly…

A: From the provided information, Margin of error = 0.03 Confidence level = 90%

Q: In order to estimate the population proportion with a high school education,  you need a minimum…

A: It is given that margin of error (E) is 0.07 and the confidence level is 0.95.Here,

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Given,margin of error(E)=0.058sample proportion (p^)=0.235α=1-0.76=0.24α2=0.12Z0.12=1.175…

Q: How large must the sample size be in order to estimate a true proportion to within one precentsge…

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

Q: 7. Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune…

A: Given, Margin of error=0.09 Confidence level=98% p^=0.15

Q: Determine the sample size required to estimate the population mean under the following…

A: Given: e = 2.4, confidence level = 0.8 So, significance level = 0.2

Q: how many people should you sample? 4 80 125 382 383

A: Given : Margin of error: ME = 0.05

Q: How large must the sample size be in order to to estimate a true proportion to within one percentage…

A: Given that, Critical value: Using the z-table, the critical value at 90% confidence level…

Q: In order to estimate the population proportion with a high school education,  you need a minimum…

A:

Q: To quantify the average discrepancy between sample means and population means, researchers compute

A: This part comes under estimator estimation

Q: For comparing two sample proportions, the parameters of the pooled estimate must be?    A. not equal…

A:

Q: assume that a sample is used to estimate a population proportion p. find the margin of error that…

A: Givensample size(n)=325x=54.2p^=xn=54.2325=0.1668confidence level = 95%

Q: packer produces 1,200 packages of ham per shift, how many packages should the Quality Control area…

A: To find the confidence level of 95%.

Q: If we were to ask for a minimum sample size for a 94% level of confidence what would the value for…

A: Confidence Level = 0.94

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: Given that, Margin of error If the prior information is unknown, assume that the value of sample…

Q: Suppose that the standard error for the sampling distribution of the mean of time spent on an App…

A: From the provided information, Standard deviation of sampling distribution = 10 minutes when sample…

Q: Use the given data to find the minimum sample size required to estimate the population proportion…

A:

Q: Assume the managers have requested estimates of the mean attitudes towards each mall with a margin…

A: M.E= 0.05 Springdale Mean -3.81 Springdale STDEV - 1.06 West Mall Mean - 3.41 West Mall STDEV - 1.18…

Q: 2) Use the given data to find the minimum sample size required to estimate the population…

A:

Q: What is the target sample size for a population of 3,500 people with a standard value of 1.65 and a…

A: Solution-; Given: N=3500, Standard value (V)=1.65,sampleing error (Se)=0.10 We find the target…

Q: Provide a scenario for which you would use an independent sample t test. Also, explain in your own…

A: Introduction :-  Here we have to explain  Condition where independent sample t test can be applied…

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: From the given information,   Margin error = 0.07 Sample proportion = 0.22   The objective is to…

Q: Find the sample size needed to estimate the percentage of residents of one region of a country who…

A:

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A:

Q: Use the given data to find the minimum sample size required to estimate the population proportion.…

A: From the given information, Margin error = 0.04 Sample proportion = 0.60   Critical value: Using…

Q: Calculate the sample size needed in order to estimate the true proportion of defective in a large…

A:

Q: In a random sample for 56 professional actors, it was found that 46 were extrovert.let p represent…

A: Given that in a random sample for 56 professional actors, it was found that 46 were extrovert. i.e.…

Q: Assuming statistical testing was performed, what three items should be on every chart (in small…

A: A hypothesis test is carried out on the null hypothesis to determine if we have sufficient evidence…

Q: how many subjects are needed to estimate the mean number of books read the previous year with six…

A: It is given that confidence level is 0.90, standard deviation is 11.3 and margin of error E is 6.

Q: use the given data to find the minimum sample size required to estimate the population proportion…

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

Q: use the given data to find the minimum sample size required to estimate a population proportion or…

A:

Q: In a random sample of 500 teenagers 12 to 17 years old, it was found that 330 have regular access to…

A: A random sample of 500 teenagers 12 to 17 years old; n=500 It was found that 330 have regular access…

Q: A. Since the sample sizes are both less than​ 30, it must be assumed that the samples are…

A: (a) Here the sample sizes are less than 30. so, we have to conduct a two-sample T-test  Assumptions…

Q: attached a picture! the 95% margin one!

A:

Q: The manager of a small supermarket chain wants to estimate the proportion of time stockclerks spend…

A: Assume that the population proportion is 0.5. It is known that the critical value for 98% confidence…

Q: To be tested, why does a hypothesis must specify a single number about which the hypothesized…

A: There are two types of hypotheses: one is the null hypothesis and the other is the alternative…

Q: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

A: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

Q: We are interested in conducting a study in order to determine what percentage of voters of a state…

A:

Q: 9. Find the minimum sample size needed to be within a margin of error of 2% of the population…

A:

Q: use the given data to find the minimum sample size required to estimate the population proportion.…

A: find the minimum sample size required to estimate the population proportion. margin of error:0.07;…

Q: a. If we want to estimate the population mean travel-to-work time for San Francisco resi- dents with…

A:

Q: Use the given data to find the minimum sample size required to estimate the popula proportion.…

A:

Q: It is desired to draw a sample with a 95% confidence level and a 5% significance level from a…

A: The formula of finding a sample size(n) for a given population size and confidence interval is given…

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.