Homework Answers
5)
X = mean + z* sd
83 = mean + 1 * sd
95 = mean + 2 * sd
solving mean = 71
sd = 12
z = 0
X = mean = 71
option B)
6)
z = (X - mean)/sd = (53 - 71)/12
= -1.5
7)
percentile = 100 * P(-1.5 < Z < -0.5)
= 25 (approx)
8)
a distribution that is skewed to the left , it has a mean smaller than its median.
mean = 71
median = 83
mean is left of median
option b) left, negative
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53 59 6 21 83...
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Please ignore the circled choices. I am double checking my
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Can someone answer 7-11 please
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Please ignore the circled choices. I am double checking my
work.
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Please ignore the circled choices. I am double checking my work. ame rangs, then what must...
Please ignore the circled choices. I am double checking my
work.
ame rangs, then what must be a) their high and low data valoes b) the entire Eistribations () their standard deviacions 0) the difference betweem their high and lew data values e) their means 2. nkewed distribution, the median is peefenred over the mean as a measure of the center becaune he median is less than the mean d) the men menures the spread in the data modian measures...
Please ignore the circled answers. I am checking my results. rajoey is chose b. randen, what's...
Please ignore the circled answers. I am checking my
results.
rajoey is chose b. randen, what's the probability ios wegsboe of these. done a) o bX. 121 e 2266 ) .1056 ) none of these b).121 ) 2266 .1056 none of these b)) less than 1% c) 5% d) 0% e) none ofthese 32. If 1 joey is chosen at random, what's the probubility that it weis esasctly s00 mg a) 0 33. If 10 joeys are chosen at random,...
1. If two distributions have the same range, then what must be equal? a) their high...
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Please ignore the circled answers. I am checking my
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Please ignore the circled choices. I am double checking my
work.
standard deviations below a)84% b)95% and one standard deviation above the mean? 81.5% d)68% e) 34% 10. Using this set of data:(122, what is the percentile rank of 126 rounded to the nearest en2. 134.126 134, 126, 120, 128, 130, 120, 118, 125, 122, 126, 136, 118, 122, 124, 119%. b) 75 none of these - (5 or 6) when pair of dice. a) 5/18 b) 5/12 c) 4...
Please ignore the circled choices. I am double checking my work.
Using the leters in -BANANA", since there are 3 As, and 2 Ns, the mumber of Set o nt arrangements of the letters is: a) 30 12. 60 e 120 720 one of these 13. You desidl to wach 4 hows if heo ten en you select the 4 shows you will watch? 32 0) 256 d) 1680 ) mone of these 14. Find the mean of a binoenial...
Can someone answer 7-11 please
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Please ignore the circled choices. I am double checking my
work.
Find the area ynder the normal curve to the right of 2-67 a) 7486 4214 813 1056 e) .7357 α) .7486 b) .2514 с).8413 0.1056 (9.7357 proportion of soores less than 18. Find the area under the noemal curve between -1.25 and-1. 19. Ir 10 scores are nomally distibuted with a mean o 20. Same as above except find the proportion of sooees greater 21. Consider a university with...
Final Exam 1/13/19 Nam If two distributions have the same range, then what must be a) their high and low data values b) the entire distributions (e) their standard deviations d) the difference between their high and low data values e) their means 1. In a skewed distribution, the median is preferred over the mean as a measure of the center because a) the median is the most frequent number b) the mean may be too heavily influenced by outliers...
Please ignore the circled choices. I am double checking my
work.
ame rangs, then what must be a) their high and low data valoes b) the entire Eistribations () their standard deviacions 0) the difference betweem their high and lew data values e) their means 2. nkewed distribution, the median is peefenred over the mean as a measure of the center becaune he median is less than the mean d) the men menures the spread in the data modian measures...
Please ignore the circled answers. I am checking my
results.
rajoey is chose b. randen, what's the probability ios wegsboe of these. done a) o bX. 121 e 2266 ) .1056 ) none of these b).121 ) 2266 .1056 none of these b)) less than 1% c) 5% d) 0% e) none ofthese 32. If 1 joey is chosen at random, what's the probubility that it weis esasctly s00 mg a) 0 33. If 10 joeys are chosen at random,...
1. If two distributions have the same range, then what must be equal? a) their high and low data values 2. In a skewed distribution, the median is preferred over the mean as a measure of the center because: a) the median is the most frequent number İfadistribution has a mean of 9 and five ofthe six data values are 6, 8, 11, 15,and18,then the missing data value is: a) 0 4. Gail received a grade of 75 on her...
If two distributions have the same range, then what must be equal? a) their high and low data values 2. In a skewed distribution, the median is preferred over the mean as a measure of the center because a) the median is the most frequent number 3. If a distribution has a mean of 9 and five of the six data values are 6, 8, 11, 15, and 18, then the missing data value is: a) 0 4. Gail received...
Please ignore the circled answers. I am checking my
results.
a) +1.96 a).0050 b) .0250 FTR because its 1.645 e) #2.13 d)t212 c) none ofthese 35. What is the p-value result for this test c) .0228 d).0456 e) none oftee 36. Does Christine reject or fail to rgject (FTR) He and for what reason? reject because p-value c a reject because p-value> α t because ltsl < Bal
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