Quality Progress, February 2005, reports on improvements in customer satisfaction and loyalty made by Bank of America. A key measure of customer satisfaction is the response (on a scale from 1 to 10) to the question: "Considering all the business you do with Bank of America, what is your overall satisfaction with Bank of America?" Here, a response of 9 or 10 represents "customer delight." Suppose that the survey selected 300 customers. Assume that 51% of Bank of America customers would currently express customer delight. That is, assume p = .51. (a) Find the probability that the sample proportion obtained from the sample of 300 Bank of America customers would be within three percentage points of the population proportion. That is, find Pl.48 <<.54). (Round your answer to 4 decimal places. Do not round intermediate values. Round z-value to 2 decimal places.) P(0.48 ≤ (p-hat) ≤ 0.54) (b) Find the probability that the sample proportion obtained from the sample of 300 Bank of America customers would be within six percentage points of the population proportion. That is, find P(.45 <<.57). (Round your answer to 4 decimal places. Do not round intermediate values. Round z-value to 2 decimal places.) P(0.45 ≤ (p-hat) ≤ 0.57)

A study compared the felt intensity of unrequited love among three groups​ - individuals who were currently experiencing unrequited​ love, those who had previously experienced unrequited love and described their experiences​ retrospectively, and those who had never experienced unrequited love but described how they thought they would feel if they were to experience it. The results of the study are summarized in the accompanying table. Determine the significance of the difference among​ groups, using the​ 5% level.    N 40 40 40 M 3.5 3.3 3.7 S2 5.3 5.8 4.8   1. What is th null hyp?  2.The comparison distribution will be an F distribution with df= ? and df=?  3.Determine the cutoff sample score on the comparison distribution at which the null hypothesis should be rejected for the data. At 0.05  the cutoff for F=? 4. Determine the​ sample's score on the comparison distribution for the data. F=?

An Internet retailer would like to investigate the relationship between the amount of time in minutes a purchaser spends on its Web site and the amount of money he or she spends on an order. The table to the right shows the data from a random sample of

In a survey that asked individuals about their favorite styles of music, 37 replied rock, 27 said they preferred pop music, 14 stated they like classical music the most, and 3 individuals stated they preferred opera. Based on this data, what would be the mode? Why couldn’t the mean or median be used to describe this set of values?

Cris Turlock owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city. Being an experienced businessperson, Cris provides incentives for the four salespeople operating the food carts. This year, she plans to offer monetary bonuses to her salespeople based on their individual mean daily sales. Below is a chart giving a summary of the information that Cris has to work with. (A "sample" is a collection of daily sales figures, in dollars, from this past year for a particular salesperson.)   Groups Sample size Sample mean Sample variance Salesperson 1 143 204.8 2382.8 Salesperson 2 97 209.9 2501.3 Salesperson 3 53 218.3 2461.6 Salesperson 4 95 205.8 2373.9

Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.

A polling company reported that 59% of 1013 surveyed adults said that rising gas prices

Sample # 1 and has been provided in the second screenshot (hand written)