Mathematics, 22.02.2020 03:14, ChasityN8491
Difference of two proportions. A study was done to determine computer usage of workers by age using data from the General Social Survey. The survey asked respondents if they used a computer at work. The researchers did not have a strong prior belief that one group would be higher than another. On the one hand, older workers potentially had more experience and their use might be higher. On the other, it might be reasonable to say that younger workers had more experience in using computers in school. The decision was to test if the two groups are different from each other. To test this, they broke the sample of people working full-time into two age groups. The first group was aged 25 to 40 and the second group was aged 41 to 65. The data are given below. Use alpha 05 for your test. 25 to 40 41 to 65 Number answering Yes 296 384 400 500 Since the Null Value is the difference between the proportions for each group is zero, we will pool the variance. What is your conclusion of the Hypothesis Test? O Reject the Null Hypothesis that the two proportions are equal. Fail to reject the Null Hypothesis that the two proportions are equal Question 32 3 pts Difference of two proportions. A study was done to determine computer usage of workers by age using data from the General Social Survey. The survey asked respondents if they used a computer at work. The researchers did not have a strong prior belief that one group would be higher than another. On the one hand, older workers potentially had more experience and their use might be higher. On the other, it might be reasonable to say that younger workers had more experience in using computers in school. The decision was to test if the two groups are different from each other. To test this, they broke the sample of people working full-time into two age groups. The first group was aged 25 to 40 and the second group was aged 41 to 65. The data are given below. Use alpha ,05 for your test. 25 to 40 41to 65 Number answering Yes 296 384 400 500 Since the Null Value is the difference between the proportions for each group is zero, we will pool the variance. What is the Test Statistic (z") for this problem. I want just a numerical answer. Use 4 decimal places for your answer, and use the proper rules of rounding.
Answers: 3
Mathematics, 21.06.2019 19:00, mandilynn22
Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?
Answers: 1
Mathematics, 21.06.2019 22:00, garcikyl000
Hurry which expression is equivalent to 3βx^5y?
Answers: 1
Mathematics, 22.06.2019 01:20, lauretta
Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18 }, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.
Answers: 2
Difference of two proportions. A study was done to determine computer usage of workers by age using...
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