For the following distribution of z-scores location, what is the portion in the tail? z = 2.00                                    Answer:  z = .50                                       Answer: z = -1.50                                  Answer: z = -1.00                                  Answer: z = -.25                                     Answer:

Q: The cost of your electricity bill for the last five months are as follows:$54, $36, $80, $65, and…

A:

Q: Consider the data set 2 6 3 5 1 9 Find the average (mean):  Find the median:

A: Data given 2 6 3 5 1 9

Q: Calculate the median of data

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Q: Students scored the following grades on a statistics test: 80, 80, 82, 84, 85, 86, 88, 90, 91, 92,…

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Q: A basketball measured the heights of his players and found them to be: 173cm, 177 cm, 185cm, 183cm,…

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Q: 55.8, 2.7, 82.4, 10.0, 37.9, 43.8, 55.8, 10.0, 24.3 State the range rounded to the nearest tenth.

A: I have given the answer in the next step. Hope you understand that

Q: n the brackets, how did you know to use the 21 and 20 percentiles?

A: The number of observations, The data set…

Q: The following data are grades of 16 students on a statistics test.…

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Q: Find the range of the following data points: 100.1, 97, 77, 68, 123.4, 23.5, 214, 156, 214.2, 211,…

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Q: Using the data in the following chart, answer the questions below:   A. Calculate by hand the…

A: Formula for z-score: z=score-meanstandard deviation   Person 4 plant A: Score:80…

Q: Heights of NBA All-Star players are normally distributed. 97.5% of players have a height of 85…

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Q: Use the following cell phone airport data speeds (Mbps) from a particular network. Find the…

A: Use the following cell phone airport data speeds (Mbps) from a particular network. Find the…

Q: Proportion of fatalities by location of injury for motorcycle accidents Abdomen/ Full data set…

A: Null and alternative Hypothesis H0:- The distribution of fatal injuries for riders not wearing a…

Q: Find the median of the following data 8,11,7,9,14,16,3,13,17,21,15

A: Answer: Given data is, 8,11,7,9,14,16,3,13,17,21,15 Sample size (n) = 11 Data in ascending order is…

Q: alculate the 40th percentile of the data shown, 1.1,5.5,9,14.3,20.6,24.3,25.6,27.1,27.6,28.7

A: Answer:- Given data,               1.1,5.5,9,14.3,20.6,24.3,25.6,27.1,27.6,28.7               Find…

Q: Here is the second data set. 49 84 44 89 74 26 80 39 92 49 d. What is the mean (T) of this data set?…

A: We know that  Mean=sum of observation/numbar of observation  Median=middle value of the data set.…

Q: A sample of 8 movie tickets had the following prices: 1 ticket at $7.50, 3 tickets at $8.50, and 4…

A: The price of 1 ticket is $7.50 The price of 3 tickets is $8.50  The price of 4 tickets is $9.40…

Q: The 5 numbers (minimum, Q1, median, Q3, maximum) for the ratings are the following: Minimum =31 Q1…

A: Given information: The numbers of ratings are summarized as follows: Minimum Quartile 1 (Q1)…

Q: nd the  median and mode of the following data:

A: Given data, 5,10,5,15,5,20 Sort the data in ascending order 5,5,5,10,15,20

Q: Given the bowling scores of the 8 players below, find the mean and median of the data. Bowler 1: 104…

A: We have to find mean and median

Q: Calculate the student's weighted grade point average if they received the following grades in their…

A: Given that,No. of different courses = 5To find the weighted grade point average of the…

Q: Determine the range of the following data: 13,32,31,21,24,36,43,67,64,58,62,63,72,83,52,69,81 ,77

A: arrange data in accending order 13, 21, 24, 31, 32, 36, 43, 52, 58, 62, 63, 64, 67, 69, 72, 77, 81,…

Q: Find the median of the following data set 4, 6, 5, 3, 5, 8, 7, 3, 7, 6, and 3. a. 8 b. 6 c. 5 d. 7

A: c) 5

Q: Given the data set {50, 5, 12, 13, 15,18, 22, 6} Determine the 90th percentile.

A: We have given the data. And we have to find 90th percentile = ? In order to compute the 90th…

Q: For the data set, {8, 3, 1, 11, 8, 7}, Q1 3.0 %3D Q3 8.0 ニ IQR = | 8.25

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Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: What is the median of the set of data: 87,90,86,95,2,87,88,94,86,97 ?a. 87b. 87.5c. 88d. 88.5

A: Given data: Let, X = 87,90,86,95,2,87,88,94,86,97  To find: Median

Q: Use the following cell phone airport data speeds (Mbps) from a particular network. Find the…

A: Concepts and reason Deciles: Deciles are such values which divide the total number of observations…

Q: For a z-score of Z = -1.5, give the proportion in the tail (hint: use the z-table), and state…

A: Given: Z = -1.5

Q: Students in a statistics class took their second test. The following are the scores they earned.…

A: 62,56,54,59,69,81,62,61,68,61,77,73,72,91,61,53,85,52,58,50,60,56,84,58,90,70,78

Q: Use the following data to identify the box and whisker plot:

A: Answer: box and whisker plot

Q: A recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220…

A: The random variable time follows normal distribution. The sample mean is 205. The sample standard…

Q: 6. Mr. Landis created a steam and leaf plot to represent the scores his students made on the final…

A:

Q: in the highest 2.5 percent eat?  What is the z-score

A: Given that 2.5% of the highest area present in the data. That is, P(Z>z)=2.5%=0.025…

Q: There were 34 females that weighed over 250 pounds. What percent of females aged 20 to 29 weighed…

A: Given data,  N~(161.61,48.95)  i.e., μ=161.61σ=48.95   If n=34 P(X>250)=?

Q: Calculate the 30th percentile of the data shown x 2 4.7 4.8 8.6 12.3 16.8 19.2 20.7 21.3

A: Given information- We have given a data set- X - 2, 4.7, 4.8, 8.6, 12.3, 16.8, 19.2, 20.7, 21.7 We…

Q: calculate the 30th percentile of the data shown, 3.4,3.9,7,11.7,14,20.3,26.2,27.8,28.9

A: given data 3.4,3.9,7,11.7,14,20.3,26.2,27.8,28.9arrange data in ascending…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.