Define statistics

Question 5 {1 point] Answer the question Tn.Ie or False. In most situations, the true mean and standard deviation are unknown quantities that have to be estimated. QuEstion 6 {'1 point] Answer the question Tn.Ie or False. Sample statistics are random variables, because different samples can lead to different values of the sample statistics. For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 22 students, and the distribution of total study hours per week is bell-shaped with a mean of 14 hours and a standard deviation of 3.2 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and hours on Statistics each week. c) 99.7% of the students spend between hours and hours on Statistics each week.Define statistics. Choose the correct answer below. O A. Statistics is the science of collecting, organizing, summarizing, and analyzing information to draw a conclusion and answer questions. In addition, statistics is about providing a measure of confidence in any conclusions. O B. Statistics encompasses all scientific disciplines in which percentages are used, data are analyzed, and probabilities are found. In addition, statistics references any mathematical model which is reported using percentages or proportions. O C. Statistics encompasses all scientific disciplines in which random occurrences are analyzed. In addition, statistics references any random occurrence which is reported using percentages or proportions. O D. Statistics is the science of manipulating, reorganizing, and editing information to produce the desired results. In addition, statistics is about providing the required answer with the desired level of confidence.Statistics/Quantitative Analysis: Statistics Yessenia Carmill Homework: Week 5 MasteringHomeWork S Score: 0 of 2 pts 42 of 42 (35 complete) HW Score: 64.08%, 38.45 of 6 7.3.18-T Question Help Use a t-test to test the claim about the population mean p at the given level of significance a using the given sample statistics. Assume the population is normally distributed. Claim: u #28; a = 0.05 Sample statistics: x = 27.2, s =4.7, n= 13 Ha: H# 28 Ha: [ > 28 What is the value of the standardized test statistic? The standardized test statistic is . (Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 2 parts remaining Clear All Final Check * Previous N