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 400 americans results in 154 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.

No, this is not necessarily evidence that the proportion of Americans who are afraid to fly has increased.

Step-by-step explanation:

Since we have given that

n = 1400

x = 154

So,

and p = 0.10

So, hypothesis would be

So, the test statistic value would be

At 5% level of significance,

critical value would be 1.96.

Since 1.96>1.25.

so, we will accept the null hypothesis.

Hence, no, this is not necessarily evidence that the proportion of Americans who are afraid to fly has increased.

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

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step-by-step explanation: