Find the associated z-score or scores that represent the following standard normal areas. (Hint: Use the Excel function =NORM.S.INV() to find the z-score.)   a. Middle 50 percent. (Negative values should be indicated by a minus sign. Round your answers to 4 decimal places.) z-score with lower tail: z-score with upper tail:   b. Lowest 5 percent. (Negative values should be indicated by a minus sign. Round your answer to 4 decimal places.) z-score:    c. Middle 90 percent. (Negative values should be indicated by a minus sign. Round your answers to 4 decimal places.) z-score with lower tail: z-score with upper tail:

Q: Determine the two values of z such that the middle 58% of the data lie between the two z-values.

A:

Q: Determine the percent of data greater than z=−1.40.

A: Know that  X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: there are theree measures of central tendency: the mean, the median and the mode. Measures persion…

A: Mean can measure quantitative data Mode and median are best for qualitative and quantitative data

Q: The following histogram presents the distribution of the exam scores for a group of engineering…

A: a) The probability below 130 is: 0.02+0.02+0.08+0.1+0.13+0.17+0.14+0.11=0.77=77% approximately.  So…

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A:

Q: Give the value of the test statistic. (Enter your answer rounded to two decim

A: Excel Procedure: Enter the data of No odor in column A. Enter the data of lavender in column B.…

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A: A distribution is said to be positively skewed / right skewed if Mode > Median > Mean  and…

Q: We have provided simple data sets for you to practice the basics of finding measures of center. For…

A: Solution: a. The given data is 2, 5, 0 and –1 Then, the mean is Thus, the mean is 1.5.

Q: e Sq Feet 1512 1023 2436 3559 Beds 3245 3 2 4

A: The linear correlation between x and y is described by its correlation coefficient, which  provides…

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A: From the given dot plot the data set is,5,8,10,16,16,16,18,20,21,22,22,25,28,32,36Arrange the data…

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A: (i) We have done the calculations for the sample means and standard deviations using an fx-82MS…

Q: Using the following data, construct a box plot. Data: 21, 23, 24, 25, 29, 33, 49 Find the minimum,…

A: X (x-xbar)^2 21 66.30612 23 37.73469 24 26.44898 25 17.16327 29 0.020408 33 14.87755…

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Q: Please answerR2:10

A: The normality of the data set is graphically represented by histogram. In histogram, the shape of…

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A: Given Graph is for Acetone concentration at different time  Here Gievn graph is ZIG-ZAG

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A: The mode is the least used of the measures of central tendency and can only used when dealing with…

Q: a. At the 0.10 level of significance, is there evidence that the mean difference is different from…

A: Given is the differences b/w actual and specified length of 80 steel parts. α=0.10 H0: μ=0 H1: μ≠0

Q: 97 71 80 29 71 55 44 76 d. What is the mean (T) of this data set? e. What is the median of this data…

A: arrange data in accending order: 29,44,55,56,68,71,71,76,80,97   sample size (n) = 10

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A: Formula : Se =√(SSE/(n-1))

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A:

Q: For quantitative data, the mean is the best measure of center when the symmetric and bell-shaped.…

A: The measures of central tendency are mean, median and mode.

Q: 4. Find the percentage of data points that lie below z = 1.46. Draw a picture to support your work.

A: The provided z-value is 1.46. The probability of data points that lie below this value can be…

Q: se answer the question in the photo. TY!

A: GIven:

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A: Given two variables without data to check the shape of the distribution.

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Q: 1.82 1.47 2.25 1.92 2.04 1.18 2.69 1.32 1.48 2.43 2.95 1.43 1.39 0.48 2.94 2.94 0.67 1.79 2.18 1.26…

A: The given data is…

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A: Given the data:46,44,44,46,47,41,46,44,44,46,39,44,35,41sample size [n] =14Arrange data in…

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Q: Mean is advantageous than the median because a. It is not influenced by extreme values

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Q: 14. A Blu-ray manufacturer knows that the disks are supposed to have a diameter of 120mm. An…

A: xbar = 120.07 mu = 120

Q: Which is the line of best fit for the data shown in the table?

A:

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A: Given Arranging Observations in the ascending order, We get :…