A ski tuning shop has set a goal not to exceed an average of 5 working days from the time the skis are brought in to the time they are finished. A random sample of 12 pairs of skis brought in for tuning showed the following service times (in days) : 7, 8, 8, 7, 7, 3, 2, 6, 8, 7, 5, 4.   Repair Time in Days (n = 12)         Days       7       8       8       7       7       3       2       6       8       7       5       4               (b) Calculate the test statistic. (Round your answer to 3 decimal places.)

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A: a box plot—displays the five-number summary of a set of data.The five-number summary is the minimum,…

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A: A B C No. workers Picking Team 3 3 3 Extra Time (min) 10 45 81 No. Workers Restocking Team 4…

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A:

Q: A recent study indicated that 67% of U.S. adults consider air conditioning a necessity. If a random…

A:

Q: I want to want to estimate the population mean of sleep that I get each night. I have two small kids…

A: From the provided information, Sample size (n) = 30 The mean and standard deviation of this sample…

Q: find 2nd quartile for given data 12,15,6,3,7,9,8,4,14,19,18,16,13,15,14,12,15,5

A:

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

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A:

Q: The number of times a student is on their cell phone in class last week is 10, 11, 9, 13, and 12.…

A: Solution: The given data is 10, 11, 9, 13 and 12.

Q: Two students recorded their scores on weekly  MMW performance task that were 20 items. Student A:…

A: Here the give information is Two students recorded their scores on weekly MMW performance task that…

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A: Introduction: There is 1 male- Andre, and 3 females- Barbara, Charlene, and Dana, from among whom, 2…

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A: Hence, the population mean is $21.84

Q: this is a statistical question Consider the monthly salary of all 5 employees of a company:…

A: Given monthly salaries of all 5 employees of a company is salary={20,30,22,20,16}

Q: A businesswoman is considering whether to open a coffee shop in a local shopping center. Before…

A: Note: Thank you for the question. Since only 25 data values are given, we have obtained mean and…

Q: Set of population 60 inches, 61 inches, 62 inches, 63 inches, 64 inches, 66 inches, 67 inches…

A: Given: The provide data of population is:                               60, 61, 62, 63, 64, 66, 67…

Q: The size of fish is very important to commercial fishing. A study collected the lengths of Atlantic…

A: 31, 44, 45, 45, 46, 48, 48, 48, 48, 49, 50, 50, 50, 51, 52, 53, 53, 54, 60, 67

Q: A sample consists of the following n = 6 scores: 5, 5, 5, 8, 8, 8 What is the Z-score for the raw…

A:

Q: 4th Grade 44, 48, 48, 51, 52, 52, 54, 54, 57, 60 7th Grade 52, 55, 57, 57, 58, 60, 60, 62, 64, 65 e…

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Q: find 5th quartile for given data  12,15,3,4,12,18,17,5,6,9,20,19,13,4,7,17

A: Solution  Its 50 th quartile not 5th quartile

Q: The observation values for a random sample with a sample volume of 19 are as follows. X: 18, 11, 17,…

A: Given data: X: 18, 11, 17, 11, 13, 12, 19, 19, 10, 13, 12, 21, 19, 18, 17, 13, 11, 20, 22

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A:

Q: Before the furniture store began its ad campaign, it averaged 130 customers per day. The manager is…

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Q: Blank are more representative of a population, but blank are easier to obtain

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Q: To test for any significant difference in the number of hours between breakdowns for four machines,…

A: Bonferroni type adjustment is made for inflated Type I error. That is, there is higher chance for a…

Q: Here are the reading scores (out of 60) of 20 randomly selected kindergarten kids in a district 34,…

A: Answer:- Given data in ascending order,  15, 26, 27, 29, 31, 32, 34, 35, 36, 38, 39, 39, 41, 42, 43,…

Q: A researcher wants to determine if the number of years of education for a parent correlates with the…

A:

Q: At a= 0.01 , test to see if there is a significant difference  in the average scores of students…

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Q: Data was collected for 322 randomly selected 10 minute intervals. For each ten-minute interval, the…

A: The formula of the class width is,The width of the class is,where,L denotes the largest observationS…

Q: The table above contains data from a study of two airlines - Sunshine Airlines & Comfort Airlines -…

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Q: About 2% of the population has a particular genetic mutation. 800 people are randomly selected. Find…

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