2. A survey was targeted at determining if educational attainment affected Internet use. Randomly selected shoppers at a busy mall were asked if they used the Internet and their highest level of education attained. The results are listed below. Is there suffificient evidence at the 0.05 level of signifificance that the proportion of Internet users differs for any of the groups? Graduated college Attended college Did not attend college 44 41 40

In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.6 hours.

A researcher would like to know which factors are most important to people who are buying a new car. A sample of n=200 customers between the ages of 20 and 29 are asked to identify the most important factor in the decision process: Performance, Reliability, or Style. The researcher would like to know whether there is a difference between the factors identified by women compared to those identified by men. The data are as follows:  Observed Frequencies of Most Important Factors According to Gender:   Performance Reliability Style Total Male 21 33 26 80 Female 19 67 34 120 Total 40 100 60   Compute the expected frequencies (fill in chart). Expected Frequencies:   Performance Reliability Style Male       Female

Find the​ (a) mean,​ (b) median,​ (c) mode, and​ (d) midrange for the data and then​ (e) answer the given question.   Listed below are foot lengths in inches of randomly selected women in a study of a​ country's military in 1988. Are the statistics representative of the current population of all women in that​ country's military?   9.3     9.9     9.1     9.9     8.7     9.4     10.4     9.5     8.8     9.1     9.1

International experience around the world is important in our culture of globalization. According to NAFSA, 54.5% of all American students traveling abroad went to Europe in the 2014-2015 academic year. To determine if there is shift in the proportion of students traveling to Europe, suppose a random sample of 300 students who had studied abroad was taken for the 2015-2016 school year. One-hundred sixty of the students traveled to Europe. a. Conduct a test to determine if the proportion of students traveling to Europe has changed. Be sure to provide a complete write-up. b. Based on the hypothesis test, would you expect 0.545 to be in confidence interval for the proportion? Explain without constructing the interval.

Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given question. Listed below are foot lengths in inches of randomly selected women in a study of a country's military in 1988. Are the statistics representative of the current population of all women in that country's military? 9.9 8.6 9.8 8.6 9.3 8.7 10.3 9.4 10.5 9.8 9.8 O a. Find the mean. The mean is inch(es). (Type an integer or a decimal rounded to two decimal places as needed.) b. Find the median. The median is inch(es). (Type an integer or a decimal. Do not round.) c. Find the mode. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mode(s) is(are) inch(es). (Type an integer or a decimal. Do not round. Use a comma to separate answers as needed.) O B. There is no mode. d. Find the midrange. The midrange is inch(es). (Type an teger or a decimal. Do not round.) e. Are the statistics representative of the current population of all…

Find the (a) mean, (b) median, (c) mode, and (d) midrange for the data and then (e) answer the given question. Listed below are foot lengths in inches of randomly selected women in a study of a country's military in 1988. Are the statistics representative of the current population of all women in that country's military? 9.4 10.2 9.0 10.2 8.5 9.2 8.8 8.9 10.4 9.0 9.0 a. Find the mean. 2 The mean is inch(es). (Type an integer or a decimal rounded to two decimal places as needed.) ew an example Get more help - F2 W S X дв mmand w非 # 3 26 80 E D $ ALA 4 C a F4 R LL F Stv ♫ONZAG % л х 5 V FS T G 6 MacBook Air B Y & 7 H F7 U N * 8 J DII 1 M ( 9 K DD O O QQQQQQQQ L Clear all P : { + [ Check answer I command option ? 11 1 1 delete

How many sources of between-group variation are measured in a two-way between-subjects ANOVA? Group of answer choices a. 4 b. 2 c. 3 d. 5

3. A number or a summarized measure that describes the characteristic of a sample is called statistic. a. b. parameter. váriation. C. d. central tendency.

b) Distribution of the Sample Proportion To assess attitudes towards issues that affect the residents of a village, the village randomly chose 800 families to participate in a survey of life attitudes. The village received 628 completed surveys. What is the sample proportion of completed surveys?