Poll Results in the Media USA Today provided results from a poll of 1000 adults who were asked to identify their favorite pie. Among the 1000 respondents, 14% chose chocolate pie, and the margin of error was given as ± 4 percentage points. What important feature of the poll was omitted?

Q: The CEO of a company wants to estimate the percent of employees that use company computers to go on…

A: From the provided information, Sample size (n) = 150 60 of them logged Facebook that day that is x =…

Q: The p-value =  (Please show your answer to 4 decimal places.) The p-value is      Based on this, we…

A: Given x1=445n1=559x2=459n2=544α=0.05

Q: Fox, marketing director for Metro-Goldmine Motion Pictures, believes that the studio’s upcoming…

A: Let us denote, H=hit M=moderate success F=flop Rating 7,8,9,10= A Rating 4,5,6=B Rating 1,2,3=C…

Q: satisfied with their work. Estimate the difference between the proportion of all elementary school…

A: Given Data n1 = 395 x1 = 224 n2 = 264 x2 = 128

Q: A random sample of medical files is used to estimate the proportionp of all people who have blood…

A: a) There is no preliminary estimate for p. Let us consider, p=0.5 Given margin of error, E=0.05…

Q: The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample…

A: Given information- Population proportion, p = 0.25 Sample size, n = 460 No. of success, x = 103…

Q: A random sample of 2000 driver's license applications found that 17% reported their eye color as…

A:

Q: What information is provided by the sign (+/–) of a z-score? What information is provided by the…

A: Let, the dataset scores have a mean µ and standard deviation σ. Then the z score of a given score ,…

Q: The population Mean is 125 with a st dev of 22.However , the population distribtuon is skewed to the…

A:

Q: The beta shoe museum states that 68% of women wear shoes that are too small for their feet. A…

A: Given : Margin of error: ME = 0.02 sample proportion: p̂ = 0.68…

Q: If you want to be99​% confident of estimating the population proportion to within a sampling error…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of the…

Q: The police tested 550 people, to see if anyone would match the partial fingerprint at the crime…

A:

Q: On an examination given to 8600 students, Hay’s score of 405 was higher than the scores of 3952 of…

A: total students = 8600 hays score was higher than 3952 of the total students

Q: A new drug, Drug X, is being tested in a clinical trial to treat patients with high blood pressure.…

A: Answer given in the steps below.

Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…

A: Margin of error(E), E=z×p×qn From the above E, find n, n=zE2×p×q Here, E=0.04 There is no…

Q: If you want to be 95% confident of estimating the population proportion to within a sampling error…

A:

Q: A random sample of 525 people was taken from a very large population. 225 of the people in the…

A:

Q: If you want to be 95% confident of estimating the population proportion to within sampling error of…

A:

Q: C. Fox, marketing director for Metro-Goldmine Motion Pictures, believes that the studio’s upcoming…

A: Let us denote, H=hit M=moderate success F=flop Rating 7,8,9,10= A Rating 4,5,6=B Rating 1,2,3=C…

Q: Compare these two, does the number of cups of coffee has an effect on the general average of a…

A: Given information: The data represents the values of the variables x = Number of cups and y =…

Q: The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample…

A:

Q: tion, the standard distance between a sample mean and the population mean is 5 points for samples of…

A: The formula of standard error: SE=sn Now,  the standard distance between a sample mean and the…

Q: A researcher at a major clinic wishes to estimate the proportion of the adult population of the…

A: We have to find correct answer for given question..

Q: wildfires looked at the west were caused by humans. What can be concluded at the  = 0.01 level of…

A: Given : x1= 350.0 n1= 519 x2= 383.0 n2= 500 significance level,α =…

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is…

A: Given Information: Hypothesized value of population proportion p0=0.08 Sample size n=321 Out of…

Q: This means the test statistic will equal approximately what value

A: It is given that Sample size n = 750 Number of users under the age of 18, X = 51

Q: More shoppers do the majority of their grocery shopping on Saturday than any other day of the week.…

A:

Q: A sample of blood pressure measurement is taken for a group of adults in those values are listed…

A: For the provided data Let us denote Systolic measurement by X and Diastolic by Y

Q: If the F ratio in an ANOVA is more extreme than the cutoff score, what does this suggest?

A: in ANOVA test our null hypothesis states that there is no significant difference between means of…

Q: A multivitamin sample was assayed for its Fe content in ppm. The analysis produced an average assay…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: A random experiment consists of throwing 4 equal coins, if X is the number of stamps:a. What is the…

A: Note:Hi, thank you for this question. We have considered number of stamps as the number of tails (or…

Q: By how many times does the sample size have to be increased to decrease the margin of error by a…

A: Margin of Error- In the theory of probability and statistics, there is a inverse relation between…

Q: If you want to be 95% confident of estimating the population proportion to within a sampling error…

A: Obtain the sample size of a preliminary estimate for p with 0.40. The formula of sample size is,…

Q: Seventeen different video games showing violence were observed. The duration times of violence ​(in…

A: Given, n=17 DF denotes Degree of freedom. It represents number of sample values one can change…

Q: A new diagnostic test for tuberculosis has a sensitivity of 90% and a specificity of 95%.  If…

A: It is given that the sensitivity is 0.9.

Q: More shoppers do the majority of their grocery shopping on Saturday than any other day of the week.…

A: Solution: Given information: n1= 200 Sample size of age group under 35n2=200 Sample size of age…

Q: 23% of the students graduating from a local high school received scholarships to college. If 163…

A: We have to find the value students total graduated from the local high school

Q: suppose an internet marketing company wants to determine the current percentage of customers who…

A: Given, p^=0.11 Margin of error = 0.08 z = 1.645

Q: If you want to be 99% confident of estimating the population proportion to within a sampling error…

A: Given information Error = 5% = 0.05 Confidence level = 0.99

Q: The relative frequency associated with a particular class in the population is the fraction of…

A: Relative frequency is the ratio of the frequency of a particular event to the total frequency.

Q: What distinguishes interpolation from other form of approximation?

A: Interpolation is the process of estimating the value of function for any intermediate value on an…

Q: How do the results compare to the percentage using chebychev's theorem?

A: Chebychev’s theorem: It helps to find the proportion of observations expected to fall within two…

Q: . NCAE shows that the average score of the students is 80 and sd is 15.  What is

A: From the given information, μ=80σ=15

Q: A sample size of _is needed.?

A: Here use formula of margin of error

Q: Based from the Problem  and ANOVA Table, what is the critical/tabular value of F? Write your answer…

A: Solve using Two-way ANOVA method Observation A B 1 98.4,97.4,96.8,98.2 98.4,97.4,97.4,98.0 2…

Q: ou want to study the effects of climate change on the lifespan of milkfishes on a fishpond. If there…

A: Here use solvins formula of sample size

Q: Ho. Hence, at 5% level of significance, we have evidence 7. If the test yielded a p-value = 0.09, we…

A: Test is that whether there is a difference between the mean length of clams from the sites with and…

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.