Zazil’s Instagram reels over the year have averaged around 70 likes per art reel with a standard deviation of 12. Since using trending music over her art reels, several of them have recently gone viral, averaging 120 likes with a standard deviation of 6. Zazil would like to know if adding trendy music over a reel increases her average likes. How do we use a Z-Test to test to calculate the data and determine if we reject or fail to reject the null hypothesis?

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A: Obtain the percent of the songs available for download on the website. The percent of the songs…

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A: We have given that  Mean = 100 Standard deviation = 15

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Q: 0.72. Suppose that we randomly pick 25 daytime statistics students. In words, define the

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Q: According to the National Center for Health Statistics, the mean systolic blood pressure for males…

A:

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A:

Q: Edit question fast please. The lengths of Atlantic Croaker Fish are normally distributed with mean…

A: Here's mean is 10 and standard deviation is 2. We will use z-standard normal distribution.