A coin was tossed 400 times and the head turned up 216 times find standard error
Answers
Answer:
400-216=184
Step-by-step explanation:
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p = 0.5 H0
H1: p 0.5 p 0.5 p 0.5 p 0.5 p 0.5 p
The sample proportion, x / n = 221 / 400 = 0.5525, where x is the number of heads.
Step-by-step explanation:
What does it mean to be unbiased while dealing with a two-sided coin? A fair coin is expected to show heads and tails with equal frequency (50 percent ). The proportion of heads emerging on a coin flip out of multiple tosses is the subject of this hypothesis test. The test is written as follows:
p = 0.5 H0
H1: p 0.5 p 0.5 p 0.5 p 0.5 p 0.5 p
If the coin is skewed, it will display less of one side than the other (and therefore more of the other). We haven't indicated whether there would be more heads or tails, for example. We're only concerned that the two sides of the coin aren't displayed evenly, or 50% of the time for each.
We wish to demonstrate that the number of times one side appears (out of all flips) is equal to the number of times the other side appears (out of all flips). So, what we're trying to prove is that the null hypothesis is correct. (Normally, it appears in the alternative hypothesis; however, in this situation, we see equality, which appears in the null hypothesis.)
Now we require our sample proportion, x / n = 221 / 400 = 0.5525, where x is the number of heads.