A researcher collects the following data from 5 college students regarding the number of times they drank alcohol in the last 30 days. We know that the population of college students drink a mean of 4.5 days in the last 30 days (i.e., this is the population mean). Is the mean level in the sample significantly different from the population mean? hand calculations. What significance test did you use?     DATA: 7, 4, 5, 6, 7

Q: Here is a chart of gas mileage (MPG) for various cars. Make and Mode! MPG (highway driving) Honda…

A:

Q: Which statistic (mean, median, or mode) is most appropriate in each of the following situations? a.…

A: Answer : a)  C. Mode b)  B. Median

Q: Answer the questions below. (a) The readers of a children's magazine are asked to name their…

A: Basics:

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A: I hope this is helpful.

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Q: Q2. From the following data below. 17 19 21 18 20 18 19 20 20 21 1. What is the mean? (а) 19.9 (b)…

A: Given data: 17, 19, 21, 18, 20, 18, 19, 20, 20, 21 (1) Mean is the sum of observations divided by…

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Q: Let µi =the true mean score for all students like these receiving the intervention and u2 = the true…

A: Box plot also known as box and whisker diagram is a standardized way of representing the data…

Q: Consider the data set 7, 9, 14, 15, 22. What is the standard error of the sample mean?

A:

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A: Given that:Number of brothers and sisters01234Number of responses31421593

Q: 12. Critical Thinking Consider the following types of data that were obtained from a random sample…

A:

Q: Question 6 Compute the population mean. ( Round your answer to the nearest hundredth ). Blank 1…

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Q: In 1955, Life Magazine reported that a 25-year-old mother of three worked, on average, an 80 hour…

A: From the provided information, Sample size (n) = 71 Sample mean (x̅) = 83 Sample standard deviation…

Q: Describe how to Convert a Sample Mean to z.

A: z-score denotes the standardized normal score.

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A: old mean for 12 students = 6.7 sum of 12 students = 6.7*12 = 80.4

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A: Solution

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A: Midrange = (Maximum + Minimum) /2

Q: 1955, Life Magazine reported that a 25-year-old mother of three worked, on average, an 80 hour week.…

A: (d) State the hypotheses. That is, there is no evidence to conclude that the mean work week has…

Q: researcher collects the following data from 5 college students regarding the number of times they…

A: 1. The claim of the test is that the mean level in the sample significantly different from the…

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Q: In 1955, Life Magazine reported that the 25 year-old mother of three worked, on average, an 80hour…

A: Solution: Given information: n= 85 Sample size  x= 83.5 Sample mean μ= 80 Populaion Mean s= 10…

Q: 6. Consumerism The numbers of high-definition televisions sold each month for one year were recorded…

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Q: What is the new mean, median and mode if each class size will be reduced into half?

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Q: he ff. examination scores, were achieved by 20 students enrolled in a dec nalysis course: 39, 46,…

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Q: Twelve professional gamers were asked their age (in years) when they first began playing their game…

A: Formula for sample mean is as follows,   x¯ = Sum of all observations Total number of observations

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A: Given data , 18, 30, 25, 5, 7, 2, 20, 12, 15, 25,40

Q: What is the mean score? Select the correct choice below and fill in O A. The mean score is (Round to…

A: given data : 11.5,11.5,9.7,9.8,11.5,10.9,11.0

Q: A psychologist has designed an index to measure the social perspectives of elementary school…

A:

Q: Professor Pete’s calculus class has the following scores: 19   21   31   32   37   45   52   55…

A: Given, The scores are 19, 21, 31, 32, 37, 45, 52, 55, 62, 63, 63, 65, 65, 77, 78 Formula of Mean for…

Q: The mean range of the sample {5. , 1, 4.2, 1.1, 0.5, 3} is or is obtained through the expression: A,…

A:

Q: 12. Critical Thinking Consider the following types of data that were obtained from a random sample…

A: The three types of data are given.

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A: The given data is as follows:313.6, 151.6, 598.5, 222.7, 293.9, 272.6, 198.5, 382.0, 188.7

Q: Which statistic (mean, median, or mode) is most appropriate in each of the following situations?…

A: 1.   It is a mode. because highest occurence of        tables is to be found.