(Answered) A statistics instructor believes that 50 of his students

Statistics

A statistics instructor believes that 50% of his students are male. One of his students thinks there are more males than females taking statistics so he decides to conduct a random survey of past courses. He found that 83 of 150 students were male.

What is the null hypothesis
What is the standard error of proportion
What is test statistic
What is pvalue for this test
Is there sufficient evidence to reject the null hypothesis at 99% confidence level a=0.01?

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