Question: Please help with this problem: When looking at a sample of 300 Instagram photos, the average likes for a Disney World themed photo is 1250

Please help with this problem:

When looking at a sample of 300 Instagram photos, the average "likes" for a Disney World themed photo is 1250 with a standard deviation of 30 likes. When looking at 100 photos of the castle, the sample average was 1425. Using a normal 0.05 significance, is it worth taking more photos of the castle to gain more likes on Instagram?

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