Assuming you had access to all the required information, could you assume a confidence interval for a mean or a proportion in the following scenarios? Which one belong to

Confidence Interval for a Mean | Confidence Interval for a proportion

1) During the lockdown of the pandemic, 68bout of 92 Canadian teenagers admitted to sleeping past 11 am during the week.

2) Printed on a chocolate chip cookie package is 425 grams

3) Hamilton commuters drive 45 minutes to work each way

4) in 2020, electric car sales represented 14% of all new car sales

2) If a confidence interval for a mean increase (gets wider), then the level of confidence we have that the interval actually contains the true population mean

a) Increase

B) Decrease

C) Stay the same

3) For a fixed confidence level, as the sample size decreases, the width (or length) of the confidence interval will

a) Increase

B) Decrease

4- To make a confidence interval for the population proportion we would use the point estimate known asp^

True

False