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 2 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.) Test statistic (a-3) The null hypothesis should be rejected. multiple choice 4 False True
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 2
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a
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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.)
Test statistic
(a-3) The null hypothesis should be rejected.
multiple choice 4
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False
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True
(a-4) The true proportion is greater than .50.
multiple choice 6
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False
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True
(b-1) Find the p-value. (Round your answer to 4 decimal places.)
p-value
(b-2) Is the coin biased toward heads?
multiple choice 8
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No
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Yes
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