EDFN 1090/1092-LEC. 2 Frequency Table C% Percentile Score Rel.f Cf Rank Real Limit 20 5% 100% 20 0.05 100 5.5~6.5 6. 0% 95% /20 0.00 X100 19 4.5~5.5 2/20 0.10 100 107 95% 3.5~4.5 4 19 0.15X100 85/. 2.5~3.5 3/20 17 15% 10/20 X100 0.50 1.5~2.5 14 50% 70% XI0 .5-15 0.20 1.00 0 93 1 4/20 4 20% 20% Total N 21 100% Fill in the blanks in the table. 20

Q: Determine the percent of data greater than z=−1.40.

A: Know that  X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: 40 Perfect SAT scores. It is possible to score higher than 1600 on the combined mathematics and…

A: 3.40) The mean is 1010 and the standard deviation is 218.

Q: Why is it ideal that you report underlying frequencies when you are reporting percentages?

A: A frequency is the number of participants or cases; its symbol is the weird F. The symbol of the…

Q: What percent of data is less than -8%

A: here we can see that shape of curve is bell shaped and symmetric about x = -6 so it is normal…

Q: How do you tell percentiles in a table

A: Percentile is a score that tells the value below which a given percentage of values falls in a table…

Q: the mean = 146, and s =  35 Question #3 A percentage of female students with scores between 41 and…

A: From the provided information, Mean (x̅) = 146 Standard deviation (s) = 35

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: How do I find the proportion of a histogram

A: Histogram is the best visualization technique for continuous quantitative data.

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 30 40 50 60 70 80 90…

A: We have to interprete given box plots.

Q: What percent of scores are below a T score of 56?

A: Given, T score is 56. Now,

Q: Describe how you would apple the five basic steps of a statistical study to the following issues.…

A: Given that, The typical percentage of bill that is left as a tip in restaurants.

Q: (c) Find the 20 th percentile of the sample mean.

A: (c) Given that, The 20th percentile of sample mean is,

Q: what does being in the 60th percentile mean?

A: Given that 60th percentile   Let a student got 60th percentile in a exam

Q: A social worker reports that 30% of workers in a factory are below 15 years of age. Of the 120…

A: Let p denotes the population proportion of workers in a factory who are below 15 years of age. Given…

Q: Are Republicans more likely than Democrats to display the American flag in front of their residence…

A:

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: In the given case we need to find the minimum sample size that will give the margin of error equal…

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: What is the difference between the average resistance to happiness at age 20 and at age 70?

A: Given :-  R = 4.6 - 0.02x put x = 20. ⇒R=4.6 - 0.02 × 20⇒R=4.6 - 0.4⇒R=4.2 Now, put x = 70 ⇒R=4.6 -…

Q: Suppose X ∼N (-4,1. Between what xx values does 99.72% of the data lie?

A: Given: X ∼N (-4,1 ) To find: Between what xx values does 99.72% of the data lie?

Q: lecture(12.3): A statistics class is made up 32% in person learners  and has 24 in person learners.…

A:

Q: Do shoppers at the mall spend the same amount of money on average the day after Thanksgiving…

A:

Q: What percentage of candidates will likely score below ftable is given as State of Nature Decision S1…

A: *answer:

Q: udge and Cable (2010) report the results of a study demonstrating a negative relationship between…

A: Given:   x y 4 151 5 88 3 52 2 73 1 49 3 92 1 56 5 143

Q: How do i calculate finding the percentage between two z scores?

A: To find the probability between two z-scores: z-score represents the number of standard deviations…

Q: if the 90% C for the population mean is (-2.58, 7.54) what is the sample mean O a 248 Ob. 10.12…

A:

Q: one percent of grades are greater than what z-score?

A:

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 20 30 40 50 60 70 80…

A:

Q: What is the percentile rank x=15 and what is the score for 75th percentile?

A: If the we have no of scores is 15 then we have formula for percentile rank as:…

Q: If the test result is significant at 5% level, it must also be significant at 1% level. True O False

A: Given : Significance level , α = 0.05

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: What percent of scores are below a z-score of z=−1.19? (You can use the z-table)

A: Given: z-score = z=−1.19 We want to find the percent of scores that are below a z-score.

Q: Joshua went to a doctor's appointment yesterday. He was weighed and the paperwork said that his…

A: Given: Joshua went to a doctor's appointment yesterday. He was weighed and the paperwork said that…

Q: Example females was Rs. 4,200. The mean salary of all the employees was Rs. 5,000. Find the…

A: Given that  Average of all workers=MA=5000 Average of male workers=MM=5200 Average of female…

Q: A news article that you read stated that 59% of voters prefer the Democratic candidate. You think…

A:

Q: Question 12 the problem is in the image!

A: We are given,Probability that the hepatoma among alcoholics without cirrhosis of the liver is…

Q: Ashley likes to track her savings account. The box plot shows how much money she had daily over the…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: How to find the z-score given the percentile.

A: Here use z table for z score from probability