Z test for proportion in Megastat

Always get overwhelmed by the amount of material when covered at a comprehensive level. Attached is the study material of what to be prepared to cover at the conclusion of this course. I have worked through them but get stumped at several points. Can you provide a systematic approach to these problems and provide a reference to refer to make sure my solutions are accurate. It would helpful if you can explain why you did what you did, as this is just a helpful of study and questions may appear differently at the actual conclusion of the course.

The publisher of Golf Illustrated has found through past experience that 50% of its subscribers renew their subscriptions. The publisher selects a random sample of 200 subscribers and finds that 84 plan to renew their subscriptions.
Does the sample data provide sufficient evidence to conclude that less than 50% of subscribers to Golf Illustrated plan to renew their subscriptions? If so, how strong is this evidence? Use a hypothesis testing procedure and an alpha=0.5. Be sure to clearly state the null and alternate hypothesis using proper notation.
Refer to Table 9B on the Handout for MegaStat output.

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