A coin was flipped 85 times and came up heads 55 times. At the 10 level of significance, is the coin biased toward heads? (a-1) Ho: TS.50 versus H: T>.50. Choose the appropriate decision rule at the 10 level of significance. a. Reject Ho if z> 1.282 b. Reject Ho if z< 1.282 a (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. True False

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A coin was flipped 85 times and came up heads 55 times. At the 10 level of significance, is the coin biased toward heads?
(a-1) Ho: TS.50 versus H: T>.50. Choose the appropriate decision rule at the 10 level of significance.
a. Reject Ho if z> 1.282
b. Reject Ho if z< 1.282
a
(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.
True
False
Transcribed Image Text:A coin was flipped 85 times and came up heads 55 times. At the 10 level of significance, is the coin biased toward heads? (a-1) Ho: TS.50 versus H: T>.50. Choose the appropriate decision rule at the 10 level of significance. a. Reject Ho if z> 1.282 b. Reject Ho if z< 1.282 a (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. True False
(a-4) The true proportion is greater than .50.
True
False
(b-1) Find the p-value. (Round your answer to 4 decimal places.)
p-value
(b-2) Is the coin biased toward heads?
Yes
No
O O
Transcribed Image Text:(a-4) The true proportion is greater than .50. True False (b-1) Find the p-value. (Round your answer to 4 decimal places.) p-value (b-2) Is the coin biased toward heads? Yes No O O
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