A labor rights group wants to determine the mean salary of app-based drivers. If she knows that the standard deviation is $3, how many drivers should she consider surveying to be 90% sure of knowing the mean will be within ±$0.79? 40 352 7 24 30

Q: Which of the following are measures on positions of a data set? 1. the third qurtile 2. the median…

A: The third quartile, the median and the maximum measures the positions of a data set.

Q: If the you were given a set of measurements 9.5 g, 8.5 g,9,1 g, 9.3 g, and 9.1 g, What is the mean…

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Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

A:

Q: 1. How much of the data lies between one standard deviation from the mean, two standard deviations…

A:

Q: Which of the following are signs of special cause variation? a. Spike in Data b. Inaccuracy in data…

A: Special Cause Variation, refers to unexpected glitches that affect a process. These are sporadic…

Q: A successful basketball player has a height of 6 feet 2 ​inches, or 188 cm. Based on statistics from…

A: Given the Z score of height of basket ball player is 1.95. The original height of the basket ball…

Q: Angela polled her first grade class about their family pets. The following data lists the number of…

A:

Q: Use the attached picture of histograms to answer the following questions. All histograms have the…

A: The four histograms are given.  To interpret the following histogram.

Q: What is the Z value for a value of X = 60?

A:

Q: s known that o = 2.15 pounds. %3D sample should be taken to be 93% confident that the sample mean is…

A: The sample size can be calculated as: n=z×σE2 Here, z = desired confidence level E = The allowable…

Q: Solve the following problems: ( Ungrouped Data) The systolic blood pressures of 12 smokers are as…

A: Data given  114, 116, 118, 120, 122, 124, 126, 128, 130, 130, 134, 146

Q: If a variable has a mean of 53, a median of 62, and a standard deviation of 4, What is its skewness?

A: The formula to find skewness is given below:

Q: ASK YOUR TEACHER   Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous…

A:

Q: Which of the following are signs of special cause variation? a. Spike in Data b. Inaccuracy in data…

A: Answer: Option a. Spike in data.

Q: What would a histogram look like if the mean is 50 the median is 50 and the standard deviation is…

A: Mean is 50.Median is 50.Standard deviation is 1.6.

Q: Question 3 Determine the mean, median, and mode of following data set: 106.2 84.7 110.6 105.8 91.6…

A: According to the given information, we have Total number of observations = 10

Q: Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won…

A: to find the number of standard deviations

Q: Find the mean and standard deviation of the original set of data.

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Q: Given that the mean of a set of data is 25 and the standard deviation is 3, what is the coefficient…

A: Given: Mean = 25 Standard deviation = 3

Q: The length of time it takes for a worker to perform certain task (in minutes) was recorded for 10…

A: Given data set5,3,11,7,6,9,4,8,7,10

Q: Consider a data set of 15 distinct measurements with mean A and median B. (a) If the highest number…

A: The median is essentially the 50th percentile, so we can think mean as a balance point.

Q: The mean score for a very difficult test is 14.6 points. Which one of the following is most likely…

A: We have given that the mean score for a very difficult test is 14.6 We have to identify which of the…

Q: If the coefficient of variation for a data is given as  35%, and the standard deviation for the same…

A: Given that Coefficient of variation, C.V =  35% And the standard deviation is SD = 32

Q: a quantitative data set has mean 25 and standard deviation 5. what percentage of the observations…

A: The z-score of a random variable X is defined as follows: z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Find the standard deviation for this data set. if a one goal hockey game was added to this data set,…

A: From the plot representing the number of goals scored per game, there are three games in which three…

Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…

A: Given that, Mean = 20 Standard deviation = 5