ake heard that spinning―rather than pping-a penny raises the probability pove 50% that the penny lands showi eads. He tests this by spinning 10 diff ennies 10 times each, so he's willing eat these spins as a random sample. 00 spins, the penny landed showing meads" in 68 spins. He wants to use th esults to test Ho : p = 0.50 versus Hap > 0.50, where p is the true roportion of spins that a penny would

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Author:Amos Gilat
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12:07
Calculating the test statistic in a z tes...
Jake heard that spinning-rather than
flipping-a penny raises the probability
above 50% that the penny lands showing
heads. He tests this by spinning 10 different
pennies 10 times each, so he's willing to
treat these spins as a random sample. In his
100 spins, the penny landed showing
"heads" in 68 spins. He wants to use these
results to test Ho: p
0.50 versus
=
Z
Ha : p > 0.50, where p is the true
proportion of spins that a penny would land
showing "heads".
64
Assuming that the conditions for
inference have been met, calculate the
test statistic for Jake's significance test.
You may round to two decimal places.
Stuck? Use a hint.
SC Do 4 problems
Check
Transcribed Image Text:12:07 Calculating the test statistic in a z tes... Jake heard that spinning-rather than flipping-a penny raises the probability above 50% that the penny lands showing heads. He tests this by spinning 10 different pennies 10 times each, so he's willing to treat these spins as a random sample. In his 100 spins, the penny landed showing "heads" in 68 spins. He wants to use these results to test Ho: p 0.50 versus = Z Ha : p > 0.50, where p is the true proportion of spins that a penny would land showing "heads". 64 Assuming that the conditions for inference have been met, calculate the test statistic for Jake's significance test. You may round to two decimal places. Stuck? Use a hint. SC Do 4 problems Check
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