A random sample of 1992 Texas government employees were selected for a study on race. The table below shows the results of the survey. The racial distribution for the state of Texas is shown in the second column below. Fill in the expected frequencies. (Round to the nearest whole number). Outcome White Hispanic Black Observed Frequencies of Race from the Sample Outcome Observed Frequency White 757 Hispanic 876 Black 159 Other 200 Other Frequencies of Race Expected Percent 42 40 10 8 Expected Frequency

How many samples or treatments are here?   490 undergraduate students at a state university in the southwestern region of the United States were surveyed. Each student in the sample was classified according to class standing (freshman, sophomore, junior, or senior) and body are category (body piercings only, tattoos only, both tattoos and body piercings, no body art). Use the data in the accompanying table to determine if there is an association between class standing and body art category. Assume that it is reasonable to regard the sample as representative of the students at this university. Use α = 0.01.                                                             Freshman  Sophmore   Junior    Senior Body Piercings                                          61              7              14          86 Only Tattoos                                             43              11             10         64 Only Mildly Piercings and Tattoos            20                9              7…

a.  t test for population mean or z test for population proportion  b. μ or p  H0: =, <, >, or ≠ H1:  =, <, >, or ≠ c. z or t

A survey asked a group of people the size of their households. The results are shown in the frequency distribution. What is the mean of the frequency distribution? Household size 25 2 3 4 5 16.4 3.28 2

Examples of population or sample? A. The types of cars driven by ur classmates B. The wt of five out of 33 tomatoes at the store C. A recent poll of 100 students in the US on studying habits

Here is a set of sample data. 43 75 64 40 50 11 91 99 44 82 39 25 35 86 60 2 27 83 45 65 1 93 88 10 Base on the data above, identify the 5 number summary

The following are the distances (in miles) to the nearest airport for 13 families. 9, 10, 16, 24, 27, 30, 31, 34, 37, 41, 41, 46, 47 Notice that the numbers are ordered from least to greatest. Give the median, lower quartile, and upper quartile for the data set.

Marc takes a random sample of 14 dogs from the local animal shelter and weighs them. He obtains the following data: 9 25 32 40 41 45 47 50 53 53 62 79 94 106 What is the median for this data?

Which of the following is a sample and not a population?     People who live in your town     People who respond to a national survey     Patients admitted to Roper Hospital during March of 2006     Sixth grade boys attending Mount Hope elementary school.

A survey was given to 18 students. One question asked about the one-way distance the student had to travel to attend college. The results, in miles, are shown in the following table. Use the median procedure for finding quartiles to find the first, second, and third quartiles for the data. Distance Traveled to Attend College 34 42 16 18 50 74 2 28 32 32 14 66 72 32 86 24 18 40 Q1=Q2=Q3=