Question

For the following situation, state the null and alternative hypotheses. Also, state the direction of the...

For the following situation, state the null and alternative hypotheses. Also, state the direction of the test.

    1. Is there evidence that a proportion is greater than 75%?
    1. Is there evidence that the mean number of pizzas sold is less than 35 in the population of all days?
    1. In college, do the age of boys and girls differ?
Math   Statistics-And-Probability   
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Answer #1

The detailed solution is given in the pictures below.

Please go through them carefully specially the notations.

Hope the solution helps. Thank you.

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