- Using the information provided, calculate the estimated standard error. Explain what this statistic means in your own words
- Calculate 90%, 95%, and 99% confidence intervals. Include a detailed explanation of how you reached your 3 answers. Be sure to show your work and include any necessary formulas.
- Provide an interpretation for each confidence interval.
- A recent study claims that the average time a user spends on Twitter is 14 minutes per day. You will test this claim by conducting a two-tailed hypothesis test
- Calculate the Z statistic to test the aforementioned claim
- Report the corresponding p value. Explain how you found this quantity.
- What do you conclude? Do you reject or fail to reject the null hypothesis? Explain how you reached your decision.
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