Given: SE = 0.484, df = 1414, and 95% CI = (19.3, 21.3) Is the population distribution normal? Why or why not? Based on your answer to the previous question, do you think it is legitimate to constrcut the confidence interval given? Explain. Also, explain what is the thing that has a 95% probability to occur.

what is the confidence level when: 90% CI mean is unknown n= 36 normal distribution = 10

Can you please help me with D thank you!

A quiz related to digital knowledge was conducted. The quiz had 10 questions and covered topics such as the purpose of browser cookies, phishing scams, and privacy policies. The survey was given to 50 people. The mean score is 4.1 with a standard deviation of 2.6. We want to know if the data provide evidence that the mean score in the population is lower than 5. We will use alpha = 0.05 to make our decision. part a. Is this a one-sided or two-sided test? part b. What is the standard error for this problem? part c. How many degrees of freedom do we have for this problem? part d. What is the test statistic, t, for this problem? Based on your test statistic and degrees of freedom, the p-value will be between what two values? (If you cannot find the exact df in the table, round down to be safe. So if you have 38 df, round down to 30df.) Group of answer choices The p-value is between .1 and .05 The p-value is between .05 and .025 The p-value is between .025 and .01 The p-value…