A sociologist wanted to determine whether there was a difference in the amount of time children 5-7 spent watching television each day. The following data was gathered. Check the data for evidence that the number of minutes spent watching television is equally distributed throughout the week. Use a-0.05. Day Sun # of minutes 210 What is the value of the test statistic? O 71.26 O2.82 O 27.48 Mon 125 72.12 Tue 140 Wed 130 Thu 125 Fri 200 Sat 225

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The number of credits being taken by a sample of 13 full-time college students are listed below. Find the mean, median, and mode of the data, if possible. If any measure cannot be found or does not represent the center of the data, explain why. 88 11 11 8 9 77777 7 10 TMV UIG TIHVUG. VGIGLIUIG COITGGL GITVIGG VGIVW aiIU, II TIGL655aiy, mI MUIG QISWGI VUX LU Compitic yoUr GilviG. O A. The mode(s) is/are (Type an integer or decimal rounded to one decimal place as needed. Use a comma to separate answers as needed.) O B. The data set does not have a mode. Does (Do) the mode(s) represent the center of the data? O A. The mode(s) represent(s) the center. O B. The mode(s) does (do) not represent the center because it (one) is the largest data value. O C. The mode(s) does (do) not represent the center because it (one) is the smallest data value. O D. The mode(s) does (do) not represent the center because it (they) is (are) not a data value. O E. The data set does not have a mode.

a. Write the claim identifying H0 Ha B.find P value C. Decided whether to reject or fail d. Interpret the decision in the context

If Ashley wants to test for GPA differences among first-, second-, third-, and fourth-year college students, which of these difference tests should she use? A. chi-square test of independence B. between-subjects, two-way ANOVA C. between-subjects, one-way ANOVA D. repeated-measures ANOVA

How is a sample related to a population? Choose the correct answer below. OA. A sample is a subset of a population. OB. A sample is a numerical measure that describes a sample characteristic. OC. A sample is the collection of all outcomes, responses, measurements, or counts.

1. Explain the difference between z-tests (which use categorical data), and t-tests (which use numerical data). 2. Conduct a t-test, both when given statistics, and when given data. 3. Conduct a t-test, 2-sample t-test, and paired t-test. 4. Differentiate between the five types of tests we have learned so far.

Number of persons in the household 1 2 A. Below is a distribution of the variable "hompop" from the 2016 General Social Survey dataset. This variable is a measure of the number of people in each respondent's household. Use the table to answer the following questions. 3 4 5 7 8 9 10 11 Total www Freq. 850 1,069 436 278 139 58 19 2,867 percent 29.65 37.29 15.21 9.70 4.85 2.02 0.66 0.31 0.24 0.03 0.03 100.00 Cum. 29.65 66.93 82.14 91.84 96.69 98.71 99.37 99.69 99.93 99.97 100.00 1

Shown below are the lengths in minutes of 6 randomly selected Disney movies. Use the data to compute each of the items requested. Don't forget to put units on your answers. Bambi 69 Cinderella 74 The Rescuers 78 Dumbo 64 Monsters, Inc 92 Wall E 98 What is the sample mean?

There are 15 numbers on a list, and the smallest number is changed from 4 to 0.4.a) Is it possible to determine by how much the mean changes? If so, by how much does it change?b) Is it possible to determine the value of the mean after the change? If so, what is the value?c) Is it possible to determine by how much the median changes? If so, by how much does it change?d) Is it possible to determine by how much the standard deviation changes? If so, by how much does it change