Let Us Enhance Solve the following problems. Write your answer on a separate sheet of paper. 1. A social worker reports that 10% of workers in a factory are below 18 years of age. Of the 100 employees surveyed, 25 said they were below 18 years old. Verify the report of the social worker at 0.05 and 0.01 levels of significance. 2. The mean content of 25 bottles of Angel Delicious Mango Juice located at Tavera St. Davao City is 360 ml with a standard deviation of 9 ml. Is this in line with the customer's claim that the bottle contains an average of 355 ml? Use 0.01 level of significance. 3. For each of the given below, draw the normal curve and locate the z-value. Then, indicate if the z-value is in the rejection region or acceptance region. a. z = -4.0, 99% confidence, two-tailed b. z = 1.8, 95% confidence, one-tailed c. z = -2.65, 95% confidence, two-tailedLet Us Assess Answer the followmg problems. Write your answer on a separate sheet of paper. 1. One of the politicians in \"Earangay Positiho\" claims that she will receive 65% of the votes in the upcoming election in the year 2022. To test her claims, one of her allies selected a random sample of 200 voters, and it reveals that there are 100 voters who will surely vote for her. At [LBS level of signicance, test the politician's claim. 2. Conduct a test for the null hypothesis Hn= 50 against the alternative hypothesis H : 50 based on 15 random observations. Assume that the sample mean is 55 and the sample standard deviation is 4. Use or = 0.05. 3. A school administrator claims that more than 90% of the students have opted for modular distance learning. a sample data obtained Earn a survey of 200 students where 35% have opted for modular distance learning. a. What test statistic appropriates to test the hypothesis?I b. Is it a directional or non-directional test? If directional test, specify. c. State the hypothesis. d. Sketch the graphical representation of the test. 22