Question

In: Statistics and Probability

A baseball player was at bat 33 times during preseason exhibition games. His pattern of hits...

A baseball player was at bat 33 times during preseason exhibition games. His pattern of hits (H) and nonhits (N) is shown (a nonhit is a walk or a strikeout). At α = .10, is the pattern of hits random?

N H N H H N H N N H N N N N N N N H H N N N H N H N N N N N N N H



(a) The correct null hypotheses is

a. H0: Events follow a random pattern
b. H1: Events do not follow a random pattern

  

  • a

  • b



(b) Calculate the expected number of runs. (Round your answer to 3 decimal places.)
  
Expected value             

(c) Calculate the z-score and the p-value. (Round your answers to 4 decimal places. Use expected value and standard deviation rounded to 3 decimal places. Use the formulas in the textbook to determine the z-score, not MegaStat. Use Excel to calculate the p-value.)
  

z-score
p-value


(d) Do the events follow a random pattern?
  

Solutions

Expert Solution

it determines null hypothesis and the events follows a random pattern

since, P value < 0.05.

Thank you.

orchestra answered 2 years ago
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