In the study conducted by selecting 100 female and 100 male students in order to test the claim that female students and male students prefer to prefer "Wanted" brand chocolate, the average ratio of chocolate preference of all students was 0.60, p-value was

Q: A report statesb that 45% of home owners had a vegetable garden, how large a sample is needed to…

A: Answer: From the given data, population proportion (P) =45% = 0.45 Margin of error (ME) = 6% = 0.06…

Q: A college is considering the option to include plus and minus in the school's letter grading system.…

A: Given Information :  A college is considering the option to include plus and minus in the school's…

Q: What sampling method was used?

A: 100 students was required to estimate the mean achievement in research of graduatestudents. The…

Q: That is the percentage of individual adult females, now, what is the percentage of samples of 64…

A: The mean is 79 kg and the standard deviation is 22 kg.

Q: In a sample of 300 days, St. Petersburg has 171 foggy days. In an independent sample of 200 days,…

A: p^=X1+X2n1+n2  =171+92300+200  =0.526

Q: Determine the sample proportion. It has been determined with 95% confidence that the proportion of…

A:

Q: A sample of 50 potential customers was asked to use your new product and the product of the leading…

A: Let n = sample size = 50 X = number of customers who preferred the product in the sample = 30

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: What term is used to explain the natural difference between a sample mean the overall population…

A: What term is used to explain the natural difference between a sample mean the overall population…

Q: Anna is 3 years old and in the 42nd percentile for height in her age group. What does this mean?…

A: Given: 1)Anna is 3 years old and, 2) In the 42nd percentile for height in her age group. In the…

Q: What is the test statistic? Round your answer to three decimal places. Click…

A:

Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…

A: Given X=300 n=1815

Q: Why is a sample proportion generally used to estimate a population proportion instead of obtaining…

A: Population proportion: The proportion that is calculated from the population which has a specific…

Q: The digital marketing specialist would like to test the claim that the percent of customers who use…

A: Formula : Test statistic

Q: In a survey of 1200 workers, 35% said they eat at home during a typical work week. What is the…

A:

Q: In a CBS poll of 1289 adults, nationwide, asking whether they favor or oppose teacher and school…

A:

Q: Is there a difference in greater percentage of popped kernels using name-brand microwave popcorn…

A: Assume that the percentages of popped kernels for Name-brand and that for Store-brand are…

Q: What is the percentile rank of a bag that contains 1025 chocolate​ chips?

A: The mean is 1252 and the standard deviation is 129.

Q: In a comparison taste test of two juice drink 780 people preferred Cranberry Blast.Only 220 people…

A: In a comparison taste test of two juice drink 780 people preferred Cranberry Blast.Only 220 people…

Q: In a test for equality of two proportions, the sample proportions were p1 = 32/60 and p2 = 20/60.…

A: p1 = 32/60 and p2 = 20/60. n1=60 ,n2=60

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 10 p.m Newscast reaches 54% of…

A: Answer: From the given data, Population proportion (P) = 54%                                      =…

Q: A report statesb that 49% of home owners had a vegetable garden, how large a sample is needed to…

A: Answer: From the given data, Population proportion (p) = 49% = 0.49 Margin of error (ME) = 8% = 0.08…

Q: A survey of 400 non-fatal accidents showed that 189 involved the use of a cell phone. Determine a…

A: Given that, In a survey of 400 non-fatal accidents showed that 189 involved the use of a cell phone.

Q: A wildlife biologist is doing research on chronic wasting disease and its impact on the deer…

A:

Q: Harley Davidson motorcycles make up 13% of all the motorcycles registered in the United States.You…

A: Approximate distribution is normal

Q: Addmissions officer sampled 124 entering freshmen and found that 35 of them scored less than 530 on…

A: According to the provided information, x=35 n=124

Q: A lecturer would like to analyse whether there is a relationship between the country of origin of…

A: Population is the set of all units of interest. Sample is a subset of the population. In real life…

Q: ve bi

A: It would be better if we enquire with all students, when the strength of class students is little.…

Q: The workers at drug factory took a random sample of 800 drug tablets and found that 40 of them were…

A:

Q: In a Harris poll of 500 human resource professionals, 230 said that body piercings and tattoos were…

A: Here, the confidence level or level of significance is not mentioned. In general, it would be…

Q: A software company is interested in improving customer satisfaction rate from the 80% currently…

A: Given that  Sample size n =243 Favorable cases x =205 Sample proportion p^=x/n  =205/243 =0.8436…

Q: A researcher is conducting an investigation regarding the factors affecting the performance of 200…

A: Given Information: Number of teachers in the province of Cavite is 200 Margin of error is 3% i.e.,…

Q: recent poll reports that between 53% and 59% of voters will vote for president george in the next…

A: The confidence interval is (53%, 59%).

Q: According to an article in Newsweek, the natural ratio of girls to boys is 100:105 . In China, the…

A: Given that, According to an article in Newsweek, the natural ratio of girls to boys is  100:105 . In…

Q: If 471 households were surveyed out of which 385 households have internet fiber cable, what is the…

A: Among 471 households 385 households have internet fiber cable, therefore 471-385 = 86 households…

Q: Four mixer trucks, A, B, C, D, are used to move concrete from the batching plant to the construction…

A:

Q: A Chinese cell-phone manufacturer exclusively uses robots in one of its factories. A random test run…

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.