Null hypothesis urgent

Question 3 According to a Kaiser Family Foundation survey, children aged & to 18 years in the United States spend an average of 190 minutes per day watching television. A recent random sample of 4 such children showed the following results: 200, 210, 230, 220 (in minutes) At the 5% level of significance, can you conclude that the current mean time spent watching television per day by children in this age group differs from 190 minutes? a)Step 1: State the null and alternative hypotheses. Ho: V = 190 min H,: U Z 190 min. b)Step 2: Write down the appropriate test statistic (formula) , but first check assumptions c) Step 3 : Write down the rejection region of your test. d Step 4: Compute the value of the test statistic () The sample mean - 190 min. The sample standard deviation The value of the test statistic )Step S: State your conclusion: (i) Reject Ho Do not reject Ho (Just circle) (ii) in one sentence apply the results to the