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State the null and alternative hypothesis of the following statements 1 We want to test if it takes less than 45 minutes to answer the Periodical Exams in Probability and Statistics 2. A medical test is conducted to determine whether a Sinovac vaccine reduces complications of Covid-19 3. The enrolment in SHS this school year increases by 30% Ha 4. The school wants to test if the students in Grade 11 prefer online distance learning as the method of instruction He: Lesson 3: Sampling Distribution of Sample Means Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper, 1. Which of the following distribution refers to the frequency distribution of the sample mean from all the possible random samples of a particular sample size n taken from the given population? a. normal b. population c. sampling d frequency 2. Which of the following is NOT a phase in making sampling distribution of the sample means? B. Create a frequency distribution table of the sample mean and probability. b. Calculate the standard deviation and variance of the samples c. Identify the number of sets of all possible random samples. d. List all the possible random samples and solve for the sample mean of each set of samples. For numbers 3 - 5, a population consists of the data (1, 2, 3, 4, 5]. 3. How many different samples of size n = 3 can be drawn from the population? a. 10 C. 6 b. 8 d. 4 4. Which of the following sample means has the lowest frequency in the sampling distribution? a. 2.33 C. 3 b. 2,67 d. 3.33 5. What is the probability of the sample mean 3.67 in the sampling distribution? b