Hello I got part one and two correct but I could not compute part 3. Can you please assist me. Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 200...

Hello I got part one and two correct but I could not compute part 3. Can you please assist me.

Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 200 times and got 84 heads. We wish to find how significant is this evidence against equal probabilities.

1. What is the sample proportion of heads?
   
   
   .42
   
   
   
   
   


2. Heads do not make up half of the sample. Is this sample evidence that the probabilities of heads and tails are different?
   
   
   Takep to be the probability of getting heads in a spin of a penny. Which hypotheses do we want to test?
   
   
   
   
   
   

   
   
   • H₀:p = 0.5
     H₀:p > 0.5
   
   
   • H₀:p ≠ 0.5
     H₀:p = 0.5
   
   
   • H₀:p = 0.5
     H₀:p ≠ 0.5
   
   
   • H₀:p = 0.5
     H₀:p <>
   
   

   
   Correct
   
   
   
   
   
   


3. Compute the z test statistic.
   
   
   
   z = Incorrect Round to 2 places.