OBSERVED TABLE | |||||
Success | No Success | TOTAL | |||
Girl | 30 | 10 | 40 | ||
Male | 40 | 10 | 50 | ||
TOTAL | 70 | 20 | 90 | ||
E1= | RT*CT/GT = | 40*70/90 | |||
31.11111111 | |||||
O= | OBSERVED FRQ | ||||
E = | EXPECTED FREQ | ||||
EXPECTED TABLE | |||||
Success | No Success | TOTAL | |||
Girl | 31.11111111 | 8.888888889 | 40 | ||
Male | 38.88888889 | 11.11111111 | 50 | ||
TOTAL | 70 | 20 | 90 | ||
H0: | Success is independent of gender | ||||
H1: | Success is dependent of gender | ||||
level = | 0.05 | ||||
CALCULATION TABLE | |||||
O | E | O-E | (O-E)2/E | ||
Girl S | 30 | 31.11111111 | -1.11111 | 0.03968254 | |
Male S | 40 | 38.88888889 | 1.111111 | 0.03174603 | |
Girl N S | 10 | 8.888888889 | 1.111111 | 0.13888889 | |
Male N S | 10 | 11.11111111 | -1.11111 | 0.11111111 | |
SUM = | 90 | 90 | 3.55E-15 | 0.32142857 | |
A) | Chi sq test statistics= | 0.3214285 | |||
DF =(2-1)(2-1) =1 | |||||
p value= 0.5708 | |||||
Conclusion: | p value(0.5708) > 0.05 | ||||
Fail to Reject Ho | |||||
so we conclude that | Success is independent of gender at 5% | ||||
B) | When level =1% | ||||
we have | |||||
Conclusion: | p value(0.5708) > 0.01 | ||||
Fail to Reject Ho | |||||
so we conclude that | Success is independent of gender at 1% | ||||
Result of both option is same |
Question 5: (20 points) 30 of 40 girls and 40 of 50 male students were successful...
50 students 20 girls and 30 boys choose 10. how many possible out comes? all girls? 5 girls + 5 boys?
43 college students 44% male, 56% female Students reported on the number of hours spent studying per week (0-40 hours), their life satisfaction (scale from 0-100), degree of stress they experienced over the last month (scale 0-5), and completed an IQ test (40-160). Students also reported their gender (1=male, 2=female) and cumulative GPA. For the statistical analysis performed, you need to provide responses to two questions: What type of statistical analysis was used to examine what kind of research question?...
43 college students 44% male, 56% female Students reported on the number of hours spent studying per week (0-40 hours), their life satisfaction (scale from 0-100), degree of stress they experienced over the last month (scale 0-5), and completed an IQ test (40-160). Students also reported their gender (1=male, 2=female) and cumulative GPA. For the statistical analysis performed, you need to provide responses to two questions: What type of statistical analysis was used to examine what kind of research question?...
The subjects were 30 male and 30 female right-handed introductory psychology students who volunteered to parti cipate in exchange for course credit. Initial testing on spatial and verbal tests revealed the following summary statistics. Note that the scores on the spatial task can range from 0 to 40, whereas those on the verbal task can go from 0 to 20. The distributions are not strongly skewed on either scale or for males or females Spatial Verbal Sex Mean 10.20 7.80...
conducted to determine success rates of students enrolled in the Statistics courses offered at South Plains College for the fall semester of 2015. A random sample of 14 students was taken, and we recorded each student's age, final average, gender, # hours worked per week, race, and t attended this semester). Use the results from the following table to answer all parts of #2. he attendance record (# of classes not Age 20 18 19 Final Average Gender # Hrs...
Quiz 4 Ch 5 Question 4 of 4 (2 points) 3 A sample of 350 students at a particular university was taken. The students were classified according to their major and their gender. The results are given in the contingency table below. Female47 29 Male 28 26 What is the relative frequency of male students in the sample? Round your answer to two decimal places.
uestion 3 (5 points) State the null and alternative hypothesis for the test associated with testing whether colorblindness and gender are dependent characteristics. Question 3 options: a) H0: Colorblindness and gender are dependent characteristics. Ha: Colorblindness and gender aren’t related in any way. b) H0: Colorblindness and gender are dependent characteristics. Ha: Colorblindness and gender are related in some way. c) H0: Colorblindness and gender are independent characteristics. Ha: Colorblindness and gender aren’t related in any way....
QUESTION 15 Figure 5-5 11 Price - Demand 5 10 15 20 25 30 35 40 45 50 55 Quantity Refer to Figure 5-5. Using the midpoint method, demand is unit elastic between prices of O a. $20 and $40. b.$50 and $70 c. $40 and $60 d. $40 and $50.
QUESTION 1 Figure 2-5 100 90 80 70 60 50 40 30 20 10 10 20 30 40 50 60 70 80 washe Refer to Figure 2-5. It is possible for this economy to produce O a. 60 dryers and 50 washers. b. 60 dryers and 60 washers. c. 80 dryers and 50 washers. O d. All of the above.
Question 5 (13 points) A random sample of 20 NAU students were asked how many hours of television they watch each week. The following is StatKey output for this data. Bootstrap Dotplot of Mean 400 Left Tail Two-TallRight Tail 350 samples - 10000 mean 5.453 std. error -0.511 Original Samp n-20, mean - 5.45 median-5, stdey - 15 10 5 300 0 250 2 4 200 150 0.025 0.950 0.025 100 Bootstrap Sam Show Data Table n-20, mean - 5.05...