Question: A recent news article stated the average Zoom call length in 2020 was 32 minutes with a standard deviation of 8 minutes. A researcher was

A recent news article stated the average Zoom call length in 2020 was 32 minutes with a standard deviation of 8 minutes. A researcher was interested in knowing whether personal Zoom calls in particular were longer or shorter than the overall average Zoom call in 2020. The researcher randomly selected a single personal call and recorded its length of 46 minutes. Based on this one case, what can you conclude about whether personal Zoom calls differ in length from the overall average in 2020? (Use the .05 significance level.) a) Use (and label) the five steps of hypothesis testing. (20 pts.) b) Sketch the distributions involved. (5 pts.) c) Would the conclusion be different if you utilized the .01 level of significance? Why or why not? (10 pts.)

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