Directions: Ans. the ff problems.

Situation 1: amount spend in buying products in different online stores

An online store claims that the average amount spent by an individual on buying electronic goods is greater than 10,465. A sample of 40 individuals has a mean of 10,988.25 with a standard deviation of 261.63. Conduct a hypothesis test to verify the claim of the store owner. (Use a significance level of 0.01)

Situation 2: number of hours watching movies/series

Kevin and Sofia were arguing that who spends more time watching movies/series boys or girls. They decided to conduct a survey. In a sample of 40 boys, the mean time was 7.3 hours with a standard deviation of 1.3 hours. In a sample of 34 girls, the mean time was 6.8 hours with a standard deviation of 2.5 hours. Conduct a hypothesis test to check if there is a significant difference between the mean time spent watching movies/series between boys and girls. (Use a significance level of 0.05)