Q1) A survey of 672 audited tax returns showed that 448 resulted in additional payments. Construct a 95 percent confidence interval for the true percentage of all audited tax returns that resulted in additional payments.

Q2)

1. A Research was conducted to understand whether different educational level have a different in attitude on politicalissues.
2. Do nuclear family system go to market for shopping more often than joint family system?
3. The psychologist wishes to see if there has been any change in the ability of patients after a specific treatment. The patient take a test before the start of the treatment and an equivalent one after they have completed it?

d.An Uber service claims that it takes, on the average 15 minutes to reach its destination. To check on this claim, the agency which licenses Uber service has collected 100 random customer calls to check this claimed.

e.Extroverts and introverts are equally spends money on their family.

f.Dieting is unrelated to weight loss.

g.Two types of drugs were used on patients for reducing their weight. Drug A was imported and drug B indigenous.

h.Statistics facilitator wants to know the performance of the two classes for the same subject are same or different.