Questions: a) Make a stem and leaf plot of the age distribution. Stem Leaf 1 2 3 4 5 6 68 Classes 0112223445667779 001122344556789 0013567799 13568 34 b) Make a frequency table with seven classes showing class limits, frequencies, and relative frequencies. Frequencies Relative frequency (round to 2 decimal places)

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A: GIVEN DATA,normal distribution μ=509σ=112we have to find out the given probabilities

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Q: a. To compute the confidence interval use a     distribution.   b. With 95% confidence the…

A: Given that  Sample size = 255 , Mean = 2.2 , Sample Standard deviation = 2.9

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A: Given that: 77, 74, 85, 80, 81

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A: Hint: The control limits for the X-Chart and R-Chart are: UCLX=X¯+A2R, CL=X, LCLX=X¯-A2R UCLR=D4R,…

Q: Find the probability of the z score is greater than -1.35

A: z be a standard normal random variable. then z ~ N(0,1).

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Q: Find the 3rd Quartile, 7th Decile, and 78th Percentile of Grouped Data Given: 70  96  86  88  77…

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A: Given data is12,5,7,4,6,9,11,11,9,8,5,9,10,11

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A: Here from the given information we want to know the shape of the distribution.

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Q: Jane got the following grades (%) on her final year report card: 76, 94, 56, 78, 62, 88, 94, 86 and…

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A: Given that Sample size =60  Sample mean =1.96 Population standard deviation =0.36 At 95% confidence…

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A: Given data is 19.6,31,45.6,21,40.4,27.1,20.1,41.8,54.4sample size(n)=9confidence level=98%

Q: year, controls, 18.44 Year-to-year comparison. Rather than comparing the two groups in each we could…

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Q: Question 5 Find the probability of the z score is greater than -1.35

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Q: Question 2 According to Nielsen Media Research, children (Group 1-ages 2-11) spend an average of…

A: Given Information: Children: Sample size n1=15 Sample mean x¯1=22.45 Sample variance s12=16.4 Teens:…

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Q: (Solve using pen and paper) Cans of salmon are supposed to have a net weight of 6 oz. The canner…

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Q: The Pew Research Center asked a random sample of 2024 adult cell-phone owners from the United States…

A: Given data is   Age 18-34 35-54 55+ Total Type of cell phone iphone 169 171 127 467 Android…

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A: Given,sample size(n)=24population standard deviation(σ)=0.25

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A: Given that  p = 6% = 0.06 , q = 1 - p = 1 - 0.06 = 0.94 , n = 150

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A: Method Using the emperial rule to find the relative frequency.

Q: Out of a random sample of 100 parents, 64 supported lowering the driving license age limit to 16…

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Q: Will upvote if show solutions in EXCEL. At one percent level of significance, are the given heights…

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Q: The distribution of salaries (in £10,000s per annum) in the building industry is represented by a…

A: 1) It is needed to find the value of C.