Height (inch) Shoe size 67 8.5 9.5 70 73.5 11 75 78 12 13 66 8
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L4Q2.Which one of the following scatter plots best describes the given data?
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- The data in the stem-and-Ileaf plot represents how far schools are from the town hall, in miles. Which statement describes the trend in the plot? Key: 3 30 = 3.30 miles Stem Leaf 08 17 29 45 69 92 1 03 34 76 81 2 13 24 3 02 78 4 40 19 83 O Schools are dispersed evenly throughout the city. O Schools are more densely packed near the town hall. O Schools are less densely packed near the town hall. O The distance between schools and the town hall follows no pattern.The data below represent the number of wins by 11 major league baseball teams and the team ERA. The owners would like to know if there is a linear relationship between the team ERA (earned run average) and the number of wins in a season. Using the data given, answer the questions below: Team ERA Wins Chicago White Sox 4.4 62 Chicago Cubs 4.8 102 Cleveland Guardians 8.6 50 Cincinnati Reds 6.4 84 Detroit Tigers 14.9 60 Milwaukee Brewers 3.3 135 Kansas City Royals 8.2 59 Pittsburgh Pirates 7.8 58 Minnesota Twins 4.5 105 St. Louis Cardinals 6.7 82 New York Yankees 5.4 95 a. Develop the least squares regression equation. b. Estimate the number of wins for a team with a 6.0 ERA. c. Compute the coefficient of determination. Explain what this means in your own words in the context of the problem. d. Using a t test, complete a hypothesis test to determine whether the…The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. 11.8 8.1 7 3.7 2.7 2.8 2.6 0.4 14.3 11 10.1 7.1 6.1 6.2 6.4 4.6 I = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the equation y = 0.87x + 3.98. Use this equation to answer the following: Special Note: I suggest you verify this equation by performing linear regression on your calculator. A) How many murders per 100,000 residents can be expected in a state with 6.2 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 2.4 thousand automatic weapons? Answer = Round to 3 decimal places. Hint: Help Question Help: 9 Message instructor 田 @ 3 16
- The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. I 11.7 8 6.8 3.6 2.3 2.5 2.5 0.4 y 13.7 11 9.8 I= thousands of automatic weapons 7.4 6.2 6.2 4.2 y = murders per 100,000 residents This data can be modeled by the equation y = 0.84x + 4.11. Use this equation to answer the following; Special Note: I suggest you verify this equation by performing linear regression on your calculator. Use the equation with the values rounded to two decimal places to make your predictions. A) How many murders per 100,000 residents can be expected in a state with 8.5 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 2.8 thousand automatic weapons? Answer Round to 3 decimal places.L7Q9.Which of the data is described by the given plot?Residents in a city are charged for water usage every three months. The water bill is computed from a common fee, along with the amount of water the customers use. The last water bills for 40 neighborhood residents are displayed in the histogram below. Which of these correctly describes the shape of the distribution of water bills? uniform skewed left skewed right Neighborhood Monthly Water Bill O roughly symmetric 15 43 100 125 150 175 200 225 250 Frequency
- which dot plot represents these data?The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. 11.8 6.7 3.4 2.3 2.8 2.5 0.3 14.4 10.7 9.7 5.8 6.7 4.5 I = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the equation y 0.86% + 4.03. Use this equation to answer the following; Special Note: I suggest you verify this equation by performing linear regression on your calculator. A) How many murders per 100,000 residents can be expected in a state with 4.9 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 2.4 thousand automatic weapons? se Answer = Round to 3 decimal places. Hint: Help Question Help: Message instructor Submit Question ere to search15.16 The 2008 and 2012 presidential elections. Democrat Barack Obama was elected president in 2008 and 2012. Figure 15.6 plots the percentage who voted for Obama in 2008 and 2012 for each of the 50 states and the District of Columbia. a. Describe in words the direction, form, and strength of the relationship between the percentage of votes for Obama in 2008 and the percentage in 2012. Are there any unusual features in the plot?
- QUESTION 7 According to a study reported by the National Center for Health Statistics, 3.62% of women aged 30-34 who had a child, gave birth to twins in the year 2018. 300 women aged 30 - 34 having a child were selected in a sample. Part A-What is the sampling distribution of p? The mean is and the standard deviation is Give both these answers to 4 decimal places. Part B- Find the appropriate z-score for this problem. Z = Part C- Find the probability more than 6% of the women in the sample had twins.See pictures and graphic for questions A, B and C Problem Miguel is Human Resources Manager for two hospitals in a metropolitan area. He is comparing data about the amount of sick leave (in days) taken by each of 104 full-time nurses in each of the two hospitals. The histograms below show the distributions of the two data sets. Each histogram shows the number of days of sick leave taken on the horizontal axis and the number of full-time nurses on the vertical axis. The means and standard deviations for the data sets are also given.Consider the following ordered data. 2 5 5 6 7 7 8 9 10 (a) Find the low, Q1, median, Q3, and high. low Q1 median Q3 high (b) Find the interquartile range.(c) Make a box-and-whisker plot.
