Q$1)$According to a study,the daily average time spent by a user on a social media website is $50$minutes.To test the claim of this study,Ramesh,a researcher,takes a sample of $25$ website users and finds out that the mean time spent by the sample users is $60$ minutes and the sample standard deviation is $30$ minutes.Based on this information,the null and the alternative hypotheses will be:a$.$Ho$=$The average time spent by the users is $50$ minutes b$.$H$1=$The average time spent by the users is not $50$ minutes

Use a $5\%$ significance level to test this hypothesis.