According to a study conducted by an organization, the proportion of Americans who were afraid to fly in 2006 was 0.10. A random sample of 1 comma 200 Americans results in 132 indicating that they are afraid to fly. Explain why this is not necessarily evidence that the proportion of Americans who are afraid to fly has increased.

Even is not unusual.

Step-by-step explanation:

Given:

P = 0.10

n = 1200

x = 132

1. Sample of proportion ( ˆp ) = x/n

= 132/1200

= 0.11

2. Z = ˆp - p / √p ( 1 - p )/ n

= 0.11 - 0.10 / √0.10 ( 1 - 0.10 ) / 132

= 0.01 / 0.02611

= 0.3829

3. Probability

P ( ≥ 132 ) = P( Z > 1.50 ) = 1 - P( Z > 1.50 )

= 1 - 0.9332

= 0.0668

The probability is higher than (0.05). Which makes the event unusual, therefore there is no enough evidence which suggest that the number of Americans who are afraid to fly has increased.

konichiwa~! my name is zalgo and i am here to answer your anime-related question today. more than likely, kirishima would kill izuku, marry mino and kiss momo. all of this would be my opinion by the way. (and i am also a weeb lol)

i hope this you! : d

stay and stay proud! " - zalgo

(and do you think you can mark me as brainliest? i'd greatly appreciate it! arigato~! )