THIS IS FOR STAT PLEASE MAKE SURE THE ANSWERS ARE RIGHT please make sure that question 9 and 10 are rightly done with right rounds.

Determine whether the sampling method described below appears to be sound or is awed. In a survey of 664 subjects, the following question was posted on a newspaper's website: "In your view. are nuclear plants safe?\" The survey subjects were Internet users who chose to respond to the question posted on the electronic edition of the newspaper. Choose the correct answer below. It is flawed because it is a voluntary response sample. It is flawed because it is a census. It is awed because it is not statistically signicant. 6659-} It appears to be sound because the data are not biased in any way. Determine whether the results below appear to have statistical significance, and also determine whether the results have practical significance. In a study of a weight loss program, 5 subjects lost an average of 43 lbs. It is found that there is about a 29% chance of getting such results with a diet that has no effect. . . . Does the weight loss program have statistical significance? O A. Yes, the program is statistically significant because the results are likely to occur by chance. O B. Yes, the program is statistically significant because the results are unlikely to occur by chance. O C. No, the program is not statistically significant because the results are likely to occur by chance. O D. No, the program is not statistically significant because the results are unlikely to occur by chance. Does the weight loss program have practical significance? O A. No, the program is not practically significant because the results are likely to occur even if the weight loss program has no effect. O B. Yes, the program is practically significant because the amount of lost weight is large enough to be considered practically significant. O C. Yes, the program is practically significant because the results are too unlikely to occur by chance. O D. No, the program is not practically significant because the amount of weight lost is trivial.In a study of all babies born at hospitals in one state, it was found that the average (mean) weight at birth was 3166.3 grams. Identify whether this value is a statistic or a parameter. (3 Choose the correct answer below. The value is a parameter because it describes some characteristic of a sample. The value is a parameter because it describes some characteristic of a population. The value is a statistic because it describes some characteristic of a population. 9.0!\"? The value is a statistic because it describes some characteristic of a sample. State whether the data described below are discrete or continuous, and explain why. The numbers of living grandparents that different people have CE Choose the correct answer below. A. The data are discrete because the data can only take on specific values. The data are discrete because the data can take on any value in an interval. The data are continuous because the data can only take on specific values. PP!\" The data are continuous because the data can take on any value in an interval. Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Letter grades in a math course . . . Choose the correct level of measurement. O A. Ratio O B. Interval O C. Nominal O D. OrdinalIdentify the type of sampling used (random, systematic, convenience, stratied, or cluster sampling) in the situation described below. A man is selected by a marketing company to participate in a paid focus group. The company says that the man was selected because he was randomly chosen from all adults. (I) Which type of sampling did the marketing company use? Systematic sampling Cluster sampling Stratified sampling Random sampling Convenience sampling Among fatal plane crashes that occurred during the past 60 years, 286 were due to pilot error, 96 were due to other human error, 167 were due to weather, 266 were due to mechanical problems, and 68 were due to sabotage. CI Construct the relative frequency distribution. What is the most serious threat to aviation safety, and can anything be done about it? Complete the relative frequency distribution below. Relative Cause Frequency Pilot error |:|% Other human error |:|% Weather |:|% Mechanical problems |:|% Sabotage |:|% (Round to one decimal place as needed.) What is the most serious threat to aviation safety, and can anything be done about it?