Write what is Cohen’s Guidelines for d?
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Write what is Cohen’s Guidelines for d?
The formula for Cohen's d value is obtained below:
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- The National Safety Board wants to determine the effect of seat belt use on saving lives. One study showed data on children under the age of 5 who were involved in car accidents in which at least one fatality occurred. Below is the table: X1 Survivors (0) Fatalities (1) Total No belt (0) Adult belt (1) Child seat (2) 1129 509 1638 X2 432 73 505 733 139 872 Total 2294 721 3015 Answer in 2 decimal places. a) Determine the probability that a child will be in a child seat. b) Determine the probability that X1 = 0 given X2 = 0 c) What is the probability of X1 = 1 given X2 = 0?1) Estimate the difference between the ages of male and female respondents. (Q1=AGE, Q2=GENDER)Test the hypothesis based on the given data. Two groups of drivers were surveyed to see how many miles per week they drive for pleasure trips. The data are shown, a=0.01 Single Drivers Married Drivers 106 110 115 121 132 97 102 115 104 138 | 119 97 118 122 135 133 120 119 136 96 110 117 116 138 142 139 108 117 145 114 | 115 114 113 98 99 140 136 113 113 150 108 117 152 147 117 101 114 116 113 135 154 86 115 116 104 115 109 147 106 88 107 113 138 142 140 113 119 99 108 105 Write the hypotheses for the difference of variances. (Copy and paste this variance symbol for your answer: 8², for variance 1 & 8?, for variance 2) Ho : На: The test was run in MS Excel and generated these results. Single Drivers Maried Drivers Mean 118.9142857 117.8 Variance 261.1983193 257.6941176 Observations 35 35 df 34 34 F 1.013598299 P(F<=f) one-tai F Critical one-tail 0.484409402 2.258266094 What statistical test was used to compare the variances? Conclude about the variances of the two samples. Use the…
- A researcher is conducting a test to see if handedness (right or left) affects the speed at which people perform a particular task. The researcher only knows the order in which the contestants finished. When the data are summarized (with R for right-handed and L for left-handed) the order of finishing (fastest to slowest) was: R, R, R, R, L, R, L, R, L, L Is there statistically significant evidence of an effect of handedness on the speed? Test statistic: The name of the statistical table, degrees of freedom (if appropriate), and the numerical value of the critical value for this test: P-value: Circle an appropriate conclusion: • There is significant evidence that left-handed contestants will finish the task faster. • We cannot reject the hypothesis that handedness has no effect on the time to finish the task. • There is significant evidence that right-handed contestants will finish the task faster.The data below represent the responses to two questions asked in a survey of 40 college students majoring in business: What is your gender?(M=male;F=female) and What is your major? (A=Accounting; C=Computer Information Systems; M=Marketing). Complete parts (a) and (b). Gender Major F M M M F C F A M A M C F M M C M A M M M M M C M C M M M M F A M A M C F C F C M A F M F M M A M A F A F A F A M C F M M C M A F M F C F M M A M C M A M C F A ally the data into a contingency table where the two rows represent the gender categories and the three columns represent the academic major categories. Student Major Categories Gender A C M Totals Male Female enter your response here enter your response here enter your response here enter your response here Totals enter your response here enter your…The distribution of hemoglobin in grams per deciliter of blood if approximately N(14,1) in women and approximately N(16,1) in men. Use software or Table B to find the answers. A) What percent of women have more hemoglobin than the men's mean hemoglobin? B) What percent of men have less hemoglobin than the women's mean hemoglobin? C) What percent of men have more hemoglobin than the women's mean hemoglobin?
- NEED FULLY CORRECT HANDWRITTEN SOLUTION FOR THIS.... ASAP!!! Please be fast, I'll rate positive for sure.The table lists the average gestation period (in days) and longevity (in years) for the following mammals, as reported in The World Almanac and Book of Facts 2006. Mammal Gestation, y(days) Longevity, x(years) Mammal Gestation, y(days) Longevity, x(years) Baboon 187 20 Camel 406 12 Bear, black 219 18 Cat 63 12 Bear, grizzly 225 25 Chimpanzee 230 20 Bear, polar 240 20 Chipmunk 31 6 Beaver 105 5 Cow 284 15 Buffalo 285 15 Deer 201 8 Dog 61 12 Monkey 164 15 Donkey 365 12 Moose 240 12 Elephant 645 40 Mouse 21 3 Elk 250 15 Opossum 13 1 Fox 52 7 Pig 112 10 Giraffe 457 10 Puma 90 12 Goat 151 8 Rabbit 31 5 Gorilla 258 20 Rhinoceros 450 15 Guinea pig 48 4 Sea lion 350 12 Hippopotamus 238 41 Sheep 154 12 Horse 330 20 Squirrel 44 10 Kangaroo…It is known that 9 out of 10 people are right handed. Would 35 right handed people out of group of 93 be considered significantly low, significantly high, or neither? Show your work below.