In an advanced ballet dance class, it is claimed that 42% of dancers can successfully perform a double pirouette turn. We randomly select 27 advanced level ballet dancers and only 13 of them can successfully do a double. Has the proportion increased?  What do you conclude based on your decision?

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A: Mode: The mode is the value in a set that appears the most often. It is one of the ways of the three…

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Q: X 100 160 300 400 y 505 484 435 400

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Q: 1. 2. 3.

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Q: 5. According to the 2010 Census, 16% of the people in the United States are of Hispanic or Latino…

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Q: For items 7 to 10, consider the scores 70 Grade 10 students in Mathematics Test. Scores Less than…

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Q: A company executive claims that employees in his industry get 100 junk emails per day. To further…

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Q: maximum amount that will be paid for the first month

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Q: STUDENT Q1 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 1 1 1 1 1 0 1 0 1 1 1 1…

A: Given Information: Consider the given data: Student Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13…

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Q: Problem 2. Addie has classes 4 days a week. She attends the class 6 days a week 25% of the time, 5…

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Q: all

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Q: If an estimated regression line has a slope of 16, an intercept of 4, and the mean of the input…

A: We have given that, Slope(m)  = 16, y-intercept ( n) = 4, x̄ = 8 Then, ȳ = ?

Q: Use a stem-and-leaf plot to display the data, which represent the scores of a biology class on a…

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Q: For items 4 to 6, consider the score distribution of 15 students given below: 83 72 87 79 82 77 80…

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Q: In a theoretical study, it was found that insomnia is associated with depression. It was also…

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Q: A. Compute the z for each given the following 1. Claimed proportion = 0.2, Sample proportion = 0.18,…

A: Given that Q3) claimed proportion=0.66; p=0.66 sample proportion=0.61;p^=0.61 Sample size =40; n=40…

Q: Determine if the random variables are statistically independent.

A: f(x)=∫yf(x,y) dy        =∫y=02(x2+xy3) dy                     =x2∫02dy +x3∫02y dy            =x2 y02…

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A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…