Draw a percentile curve for the following distribution of marks obtained by 700 nts at an examination: Marks No of Students Marks No of Students

Q: Calculate the 3rd quartile, 9th decile and 46th percentile o the distribution

A: Quartile is the measure that divide the data into 4 parts with 3 points. Decile is the measure that…

Q: Calculate t for a comparison for repeated-measures data?

A: The computational procedure is to compute the difference between each pair of observations (di)…

Q: The average GPA of students in 2001 at a private university was 3.58. A survey on a sample of 200…

A: The mean is 3.61 GPA obtained from a sample of 200 students in spring semester of 2012 is known as…

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: The mean monthly salaries paid to 100 employees of a company were tk. 5000. The mean monthly…

A:

Q: The relationship between the mean and the median for the N(0, 1) distribution is: a. mean>median…

A:

Q: The time it takes for an airline to get the luggage to the airport baggage carousel after a flight…

A: Let X: The time takes for the luggage to reach the airport baggage carousel.X has a uniform…

Q: Use the first 30 data values in Table 1. Test, at the 5 percent level of significance, the…

A: (a) The hypothesis to be tested for men and women's mean cholesterol is given as-…

Q: Calculate the Percentile Rank for a student who becomes fourth (4th) in terms of the GPA categorized…

A: The formula for percentile rank of score is, Percentile rank of score=Number of values below…

Q: Find the z-score that corresponds to the 63rd percentile

A: we have to find the Z-score that corresponds tothe 63rd percentile.

Q: Identify the​ t-statistic and P-value.

A: The sample size n is 23.

Q: Find the weighted mean for a particular student's scores on three exams if the first one was worth…

A: The weighted mean can be calculated as: Weighted mean = Sum of (weightage x score) / Sum of…

Q: find the mean if Z-score =14, st.Dev.=2.5, for a score of 8.5

A: Standard normal distribution:The standard normal distribution is a special case of normal…

Q: I need help filling in the following blanks based on the attached table: The 36th percentile is…

A: Introduction: It is required to identify the 36th percentile and 65th percentile.

Q: calculate all of the measures of variation that are appropriate.

A: Here measures of variation  IQR  Range  Variance  Standard deviation

Q: The following data lists heights (in cm) of 10 kids at a pediatrician's office: 151, 139, 138, 137,…

A: Heights of 10 kids = 151, 139, 138, 137, 153, 148, 156, 161, 144, 168.The percentile is the child…

Q: Weight (pounds) Contestant Race Time Standing in Prize Number Gender Grade (Seconds) Race Money…

A: Introduction - Mean or average = Sum of observations total number of observations

Q: The NAEP music assessment scores for eighth grade students are approximately N (150, 35). Find the…

A: Given data: Let , X ~ N (150, 35) To find: 1.Find the z-scores by standardizing the following…

Q: The average sales in a  company  = 225 St devaitin = 40  Using z scores, any sale over what…

A: mean = 225 sigma = 40

Q: A normally distributed data set has a mean of 0 and the standard divitation of 2. What is the…

A: Given,mean(μ)=0standard deviation(σ)=2

Q: Calculate 90th percentile for Z.

A: 90th percentile of a standard normal distribution is that 90% of the total area lying below a…

Q: The waiting times for commuters on the Red Line during peak rush hours follow a uniform distribution…

A: The waiting times for commuters on the Red Line during peak rush hours follow a uniform distribution…

Q: Survey was conducted about real estate prices. Data collected is 183237, 273290, 394891, 471556,…

A: From the information, observe that the ascending order of the given data as follows: 183237, 273290,…

Q: What percentage of the scores are in the shaded area?

A: It is given that the shaded area in graph.

Q: ompute 75th percentile for the data given               45, 32, 37, 46, 39, 36, 41, 48, 36.

A: Given data: 45, 32, 37, 46, 39, 36, 41, 48, 36. To compute 75th percentile: Percentile is a number…

Q: Calculate the 88th percentile for X.

A: Let X follows normal distribution with mean 0 and standard deviation 1. The 88th percentile for X…