Work on the following questions and give me explainations

Question:

1) Indicate whether or not the following Chi-square statistics are significant:?

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a) 2.75; k =2 __________?

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b) 11.00; k =5 __________?

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c) 12.40; df = 6 __________?

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1.2) A social worker has been asked to testify before her state legislature about the impact of long-term foster care on child outcomes and government spending. She knows that 60% of children who remained in the foster care system without being adopted ended up in prison. The figure for foster care children who were eventually adopted was 25%. These data were based on 500 children who remained in foster care and 800 children who were eventually adopted. Calculate and interpret Chi-square.?

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1.3) Calculate and interpret the z score based on the proportion of youth who end up in prison using the data from the previous example.?

Determine whether the value is a discrete random variable, continuous random variable, or not a random variable. a. The number of light bulbs that burn out in the next week in a room with 16 bulbs b. The number of freethrow attempts before the rst shot is made c. The gender of college students d. The exad time it takes to evaluate 2?+ T2 e. The square footage of a house f. The amount of snowfall in December in City A a. Is the number of light bulbs that burn out in the next week in a room with 16 bulbs a discrete random variable, a continuous random variable, or not a random variable? 0 A. It is a discrete random variable. 0 B. It is a continuous random variable. 0 C. It is not a random variable. b. Is the number of freethrowI attempts before the rst shot is made a discrete random variable, a continuous random variable, or not a random variable? 0 A. It is a discrete random variable. 0 B. It is a continuous random variable. 0 C. It is not a random variable c. Is the gender of college students a discrete random variable, a continuous random variable, or not a random variable? 0 A. It is a continuous random variable. 0 B. It is a d'mcrete random variable. 0 C. It is not a random variable. d. Is the exact time it takes to evaluate 2? +?2 a discrete random variable. a continuous random variable. or not a random variable? 0 A. It is a continuous random variable. 0 B. It is a discrete random variable. 0 C. It is not a random variable. e. Is the square footage of a house a discrete random variable, a continuous random variable. or note random variable? 0 A. It is a continuous random variable 0 B. It is a discrete random variable. H r I| :. .mo .. "ml...\" .....:..L.I.. Determine whether the following value is a continuous random variable, discrete randorn variable, or not a random variable. 4. The number of textbook authors now eating a meal b. The "yes" or "no" response to a survey question c. The height of a randomly selected person d. The number of light bulbs that burn out in the next year in a room with 20 bulbs e. The number of home runs in a baseball game f. The amount of rain in City A during July a. is the number of textbook authors now eating a meal a discrete random variable, continuous random variable, or not a random variable? O A. It is a continuous random variable Q B. It is a discrete random variable. O C. It is not a random variable b. is the "you" or "no" response to a survey question a discrole random variable, continuous random variable, or not a random variable? Q A It is a discrete random variable. O B, It is a continuous random variable, C. it is not a random variable. c. is the height of a randomly selected person a discrete random variable, continuous random variable, or not a random valable? A. it is a discrete random variable. B. It is a continuous random variable. C C. it is not a random variable d. is the number of light bulbs that burn out in the next year in a room with 20 bulbs a cincrete random variable, continuous random variable, or not a random variable7 O A It is a discrete random variable,O C. It is not a random variable, d. is the number of light bulbs that burn out in the next year in a room with 20 bulbs a discrete random variable, continuous random variable, or not a random variation O A. It is a discreta random variable. B. It is a continuous random variable. O C. It is not a random variable. e. Is the number of home runs in a baseball game a discrete random variable, continuous random variable. Is not a random vatlabia? A it is a continuous random variable. O'B. it is a discrete fandom variable. O C. It is not a random variable. 1. Is the amount of ram in City A during July a discrete random variable, continuous random venable, of not a random variable? D) A. It is a continuous random variable B. In a dncrete random vadable. OG. his not a random variable Click to select your answer8 1 point Let X a normal random variable with mean ( and variance o . Consider Z = X - # Then Z isa exponential random variable Binomial random variable geometric random variable OOOOOOO standard normal random variable Bernoulli random variable normal random variable uniform continuous random variable Previous