(a) The 9 participants in an experiment had the following reaction times (in milliseconds): 505, 785,794, 795, 803, 804, 811, 825, 826. Which measure should be used to summarize the data? Mean O Median O Mode (b) In a survey, 9 people reported how many soft drinks they drank in the last month. Here are their responses: 29, 30, 31, 32, 34, 35, 37, 38, 39. Which measure should be used to summarize the data? O Mean O Median O Mode (c) A reporter has recorded the rating (G, PG, PG-13, or R) of each movie played in a theater over the past year. Which measure gives the most common rating? O Mean O Median O Mode X S ?

Is the amount of sodium (in milligrams) in brand-name cereals the same as the amount of sodium in generic cereals? The sodium content in milligrams from a random sample of some brand-name cereals is given in the table below.  Brand-Name: x=139.92  ,  s=61.24 ,  n=21 Generic: x=154.33 ,  s=73.87 ,  n=24 Is there a difference between the sodium content in generic and brand-name cereals? Use a significance level of 0.10.  hypothesis test is needed

Three runs of an assay generate 72.49%, 72.99% and 72.40%. The average result needs to be accurate to 1%. What is the proper expression for average?

A software company is interested in improving customer satisfaction rate from the 55% currently claimed. The company sponsored a survey of 281 customers and found that 168 customers were satisfied.  What is the test statistic z?

Find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data. An experiment was conducted to determine whether a deficiency of carbon dioxide in the soil affects the phenotype of peas. Listed below are the phenotype codes where 1 = smooth-yellow, 2=smooth-green, 3= wrinkled-yellow, and 4 = wrinkled-green. Do the results make sense? 3 1 3 2 2 4 2 1 3 3 3 2 1 3 (a) The mean phenotype code is (Round to the nearest tenth as needed.) (b) The median phenotype code is (Type an integer or a decimal.) (c) Select the correct choice below and fill in any answer boxes within your choice. OA. The mode phenotype code is (Use a comma to separate answers as needed.) OB. There is no mode. (d) The midrange of the phenotype codes is (Type an integer or a decimal.) Do the measures of center make sense? O A. Only the mode makes sense since the data is nominal. O B. All the measures of center make sense since the data is numerical. O C. Only the mean, median, and mode make sense since…

A software company is interested in improving customer satisfaction rate from the 55% currently claimed.  The company sponsored a survey of 247 customers and found that 146 customers were satisfied. What is the test statistic z?

What is the cumulative frequency of students that scored half of the points on the SAT? choices: 1. none of the above/can't be determined 2. 26 3. 9 4. 55.5 5. 0.35   I already tried 2(26) and 5(0.35) but it was wrong.

You want to compare differences in prior arrests across ethnicity in your study, you measured ethnicity as white =0 black =1 hispanic=2, and other =3. Prior arrests was recorded as the number of prior arrests. which test would you perform to see if arrests differ across diffrent ethnic categories? A. ANOVA B. T-test

Use the results from a survey of a simple random sample of 1108 adults. Among the 1108 ​respondents, 84​% rated themselves as above average drivers. We want to test the claim that 3/4 of adults rate themselves as above average drivers. a. Identify the actual number of respondents who rated themselves as above average drivers.

A software company is interested in improving customer satisfaction rate from the 60% currently claimed. The company sponsored a survey of 148 customers and found that 95 customers were satisfied. What is the test statistic z?