A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 37 46 59 23 70 45 36 47 47 35 58 53 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 44 51 54 I Click here for the Excel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS and MS values to 1 decimal place and Fvalue to 2 decimal places.) Source df MS F Factors Error Total 2. Find the values of mean and standard deviation. (Round the mean and standard deviation values to 3 decimal places.) Level N Mean StDev Clothes Food Toys

Pages were randomly selected from one book each from authors A, B, and C. The accompanying table shows the ease-of-reading scores for those pages. Use a 0.05 significance level to test the claim that pages from books by those three authors have the same mean ease-of-reading score. Given that higher scores correspond to text that is easier to read, which author appears to be different, and how is that author different? E Click the icon to view the data table of the ease-of-reading scores. Determine the null hypothesis. Ho: Determine the alternative hypothesis. H1: Determine the test statistic. The test statistic is. (Round to two decimal places as needed.) Determine the P-value. The P-value is. (Round to three decimal places as needed.) What can you conclude? There V sufficient evidence at a 0.05 significance level to warrant rejection of the claim that pages from books by authors A, B, and C have mean ease-of-reading score(s). Which author appears to be different, and how is that…

Grand Jury indictment data for Gloucester Country, New Jersey, are published every week in the Gloucester Country Times newspaper (www.nj.com/gloucester). The following data are the number of indictments for a sample of 11 weeks selected from July 2010 through June 2011: 35 13 17 21 21 29 20 26 24 13 23   Find the mean, median, and mode for these data.Enter the exact answers. Enter the modes in increasing order. If there is only one mode, enter it first and enter “NA” in the second answer region.   Mean = Enter you answer; Mean indictmentsMedian = Enter you answer; Median indictmentsMode = Enter you answer; Mode 1 , Enter you answer; Mode 2 indictments

Lynn University wants to examine whether students display better academic performance in class versus online. They have collected GPAs of two different samples of students, a sample from classes that take place in-person and a sample from classes that take place online. The data set is below. They predict that in-class students perform better than online students.  Performance In Class GPA Online GPA 4.0 4.0 3.5 2.2 3.7 3.3 3.5 3.7 2.0 2.5 3.2 3.8 3.3 3.8 For this test, we should use  ________ critical and p values.  Group of answer choices a) One tail b) Two tail c) Three tail d) None of the answers

Periodically, Merrill Lynch customers are asked to evaluate Merrill Lynch financial consultants and services (2000 Merrill Lynch Client Satisfaction Survey). Higher ratings on the client satisfaction survey indicate better service with 7 the maximum service rating. Independent samples of service ratings for two financial consultants are summarized here. Consultant A has 10 years of experience, whereas consultant B has 1 year of experience. Use a = .05 and test to see whether the consultant with more experience has the higher population mean service rating. Consultant A Consultant B П1 По- = 16 = 10 = 6.82 6.25 х1 S1 = 0.7 = 0,8 a. State the null and alternative hypotheses Но: И1 - 12| Select Ha: 1 2Select b. Compute the value of the test statistic (to 2 decimals) c. What is the p-value? Use z-table. The p-value is Select d. What is your conclusion? Select

Students in an experimental psychology class did research on depression as a sign of stress. A test was administered to a sample of 30 students. The scores are given. Complete parts​ (a) through​ (c) below.   46 35 38 51 39 18 44 47 52 47   32 55 28 31 28 56 54 27 46 43   15 46 34 27 38 48 51 53 54 47   ​ (a) Find the mean and median of the data

The Economist collects data each year on the price of a Big Mac in various countries around the world. The price of a Big Mac for a sample of McDonalds restaurants in Europe in May 2009 resulted in the following Big Mac prices (after conversion to U.S. dollars):3.80 5.89 4.92 3.88 2.65 5.57 6.39 3.24The mean price of a Big Mac in the U.S. in May 2009 was $3.57. For purposes of this exercise, assume it is reasonable to regard the sample as representative of European McDonalds restaurants. Does the sample provide convincing evidence that the mean May 2009 price of a Big Mac in Europe is greater than the reported U.S. price? Test the relevant hypotheses using a = .05. Assume a normal distribution of the data. x = Ho: μ = Ha: Select an answer α= P-value = |: S= Based on the above we choose Question Help: Post to foru Submit Question (Put in the correct symbol and value) ✓ Select an answer Reject the null hypothesis Fail to reject the null hypothesis

Find Mean, Median, and Mode for the ungrouped data: 18 20 20 20 20 21 20 17 19 20 13 18 22 26 20 19 22 15 18 27 16 23 24 17 25 24 16 20 26 15 21 17 23 16 21 17 26 16 23 19

In a study examining the relation of math ability to the belief that math ability was innate, the belief was considered the predictor variable. The researcher hopes to find a correlation between the participants’ math ability and their belief that math ability is innate.  The scores for the three participants are shown below.   The group that believed that math is NOT innate scored 66, 70, 50.   The group that believed that math IS innate scored 7, 4,10.                               what are the mean and SD for each group?

2. A researcher selected a random sample of 20 individuals and recorded their heights (in inches). Make a stem and leaf plot of the Height data below. Height of Stat 1350 students (in inches) 58 59 60 62 64 65 65 66 66 67 68 68 69 69 71 72 72 73 74 76 HISTOGRAM: 3. The following is the IQ scores for 40 randomly chosen fifth graders in 2012. 108 113 12699 117 119 102 109 129 109 130 112 81 138 90 105 80 123 100 135 140 103 133 127 139 99 114 129 108 132 118 113 114 128 110 98 127 120 93 85 A. What type of data is this (Categorical or Numerical)? Use the calculator to help you draw a histogram for this IQ data. Full detail steps for using the Ti-83/84 calculator to draw a histogram given in the Chapter 11 notes. B. Enter the fifth grades IQ Scores data into List1 (L1). C. Using STAT PLOT menu set up your calculator to draw a histogram.