A coin was flipped 78 times and came up heads 44 times. At the .10 level of significance, is the coin biased toward heads?   (a-1) H0: ππ ≤ .50 versus H1: ππ > .50. Choose the appropriate decision rule at the .10 level of significance.   Reject H0 if z > 1.282 Reject H0 if z < 1.282   multiple choice 1 a b   (a-2) Calculate the test statistic. (Carry out all intermediate calculations to at least 4 decimal places. Round your answer to 3 decimal places.)       (a-3) The null hypothesis should be rejected.   multiple choice 2 False True   (a-4) The true proportion is greater than .50.   multiple choice 3 False True   (b-1) Find the p-value. (Round your answer to 4 decimal places.)       (b-2) Is the coin biased toward heads?   multiple choice 4 No Yes

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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A coin was flipped 78 times and came up heads 44 times. At the .10 level of significance, is the coin biased toward heads?
 
(a-1) 
H0: ππ ≤ .50 versus H1: ππ > .50. Choose the appropriate decision rule at the .10 level of significance.
 

  1. Reject H0 if z > 1.282
  2. Reject H0 if z < 1.282

 
multiple choice 1

  • a
  • b


 
(a-2) 
Calculate the test statistic. (Carry out all intermediate calculations to at least 4 decimal places. Round your answer to 3 decimal places.)
 

 


 
(a-3) 
The null hypothesis should be rejected.
 
multiple choice 2

  • False
  • True


 
(a-4) 
The true proportion is greater than .50.
 
multiple choice 3

  • False
  • True


 
(b-1) 
Find the p-value. (Round your answer to 4 decimal places.)
 

 


 
(b-2) 
Is the coin biased toward heads?
 
multiple choice 4

  • No
  • Yes
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