What is the 99.5th percentile in a t-distribution with 9 degrees of freedom?     a. 3.250 b. 3.169 c. 2.821 d. 2.764

Q: local CBS affiliate claims its 11p.m. newscast reaches 41% of the viewing audience in the area. In a…

A: Given that p^=36%,p=41%

Q: According to the below table calculate the weighted mean. Row Number of Students Row Average 82.3…

A: Given information- We have given a table of the number of students and their row average. We have…

Q: values is the 90th percentile of the t-distribution with 10 degrees of freedom? a. 1.363…

A: According to the central limit theorem, the sampling distribution of the sample scores follows the…

Q: find the 2.5th percentile of a t distribution with 10 degrees of freedom

A: Given:Percentile = 2.5Type of distribution = tDegrees of freedom = 10 We are asked to find the…

Q: Descriptive Statistics extra 1 Valid 10 10 Missing Mode Median Mean Std. Deviation Minimum -1.600…

A: Given: Descriptive statistics

Q: Use a computer program or SALT to compute the lower 10th percentile of a t distribution with 58 df.…

A: given data, 10th  percenti9le of a t- distrubution, df=58here we use excel function and find out the…

Q: The ages of 20 patients who suffered stress strokes were as follows. 29 30 36 41 45 50 51 56 58 60…

A: We have given data are  29 30 36 41 45 50 51 56 58 60 60 63 64 65 68 68 69 70 70 71

Q: What z-score separates the most extreme 5% of the distribution from the middle 95% of the…

A: here we know that 5% of the distribution from the middle 95% of the distribution. a- 1.96 is the…

Q: For the distribution in the following table, what is the percentile rank for X = 8.5?

A: Given that  X C% 9 100% 8 80% 7 50% 6 25% Here, Percentile rank for x=8.5

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 and median of a distribution are 14 and 15 respectively. The value of mode is

A:

Q: Density A B Score с

A: For the given curve Indicate which letter is the mean, median, and mode on the distribution below…

Q: For a recent 10k​ run, the finishers are normally distributed with mean 56 minutes and standard…

A: The 30th percentiles is obtained below: From the given information, the value of mean is 56 minutes…

Q: Refer to the incomplete grouped frequency distribution below. Classes (Rand) 8.00 < 12.00 Frequency…

A:

Q: The distribution of heights of adult men is approximately normal with mean 69 inches and standard…

A: Given that: Mean = 69 inches Standard deviation = 2.5 inches

Q: In a survey, people were asked how many times per year they had their car in the shop for repairs.…

A: From the provided information, Shop Frequency 0 84 1 83 2 35 3 53

Q: Which of the following z scores are above the mean? Choose all that apply.     0     1.35…

A: For normal distribution, the mean is equal to 0

Q: Please explain all of the steps involved in solving this problem.  What is the 60th percentile of…

A: Given, Number of Days on Campus Frequency Relative Frequency Cumulative Relative Frequency…

Q: The median is equivalent to.. O a. None of these. O b. the 75th percentile (P O the middle quartile…

A:

Q: From the data diven below, what value corresponds to the 40th percentile? 804    736    659    489…

A: Given : n=9 Data 804 736 659 489 777 623 597 524 228

Q: Use a table of z-scores and percentiles to find the percentage of data items in a normal…

A:

Q: The accompanying data are lengths​ (inches) of bears. Find the percentile corresponding to 68.0 in.…

A: Data is given  We have to calculate Percentile corresponding to 68.0 In data,  68.0 is at 43rd…

Q: What is the 70th percentile? Score f 25 2 23 4 21 3 19 5 17 3 15 2 12 1

A: Percentile : A k-th percentile (percentile score or centile) is a score below which a given…

Q: In the data set below, what is the lower quartile? 32 39 50 64 66 90 99 Submit

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Q: percer tn X 3.4 12.1 14.4

A: Given that X : 3.4,12.1,14.4,18.3,18.9,21.4,28.9,29.8 Let n denote the number of values in the data…

Q: If you were looking for the 50th percentile in a data set, which of the following should you not be…

A: Since we know that the mean is defined as  Mean = Sum of observation / number of observation And…

Q: DESCRIPTIVE STATISTICS Table 2.30 Frequency Distribution of Family Incomes

A: Given : Family Income  Frequency (f) Cumulative freqeuncy  (CF) 10,000 - 11,999 12 12 12,000…

Q: Given the following data, find the percentile of a weight of 6.6 pounds. Weights of Newborn Babies…

A: The data given is as follows : Weights of newborn babies (in pounds )…

Q: 5. Use the following values to answer the items below:              4, 4, 4, 5, 5, 6, 6, 6, 6, 7,…

A: 4, 4, 4, 5, 5, 6, 6, 6, 6, 7, 8, 8, 9, 9, 10, 11

Q: Given n = 15 Test scores in Emglish. 60,62,68, 70, 72, 74, 78,79, 82, 84,86 ৭০, १2, १५, १5. Find the…

A: A percentile  is a score below which a given percentage of scores in its frequency distribution or a…

Q: Use the California method in the linear interpolation formula to estimate the 86.81 percentile for…

A: 86.81th percentile, P86.81= L+h(86.81*n/100-cf.)/f Here L is the lower limit of modal class. h=…

Q: Calculate the 75th percentile of the data shown x 2.9 3.5 10.7 26.7 27.7 36.5 46.7 48.3 49.2 54.4

A: Given: The data values are 2.9, 3.5, 10.7, 26.7, 27.7, 36.5, 46.7, 48.3, 49.2, 54.4

Q: The accompanying data are lengths​ (inches) of bears. Find the percentile corresponding to 61.5 in.…

A: We know the data(x) of lengths(in inches) of bears. 36.0, 37.5, 39.5, 40.0, 41.0, 42.5, 44.0, 45.5,…

Q: The number of traffic violations recorded by a police department for 10 days is shown. Find the…

A:

Q: You're curious what the average age of people on your flight is. Age is Normally distributed. You…

A: Given, n = 6 x¯ = 43 s = 5

Q: The mean score on this test is: The median score on this test is:

A: Here given frequency distribution of 10 point quiz  Test score = xI   Frequency  = fi

Q: Consider the boxplot below. Box Plot with five Point Summary: 5,9,10,17,30 a. What quarter has the…

A:

Q: For which quartile, 25% observations are greater and 75% are smaller A. Third quartile B. Second…

A: to find For which quartile, 25% observations are greater and 75% are smaller

Q: The percentile is the:   Question 5 options:   same thing as a percentage.   percentage of scores…

A:

Q: technician needs to change the oil in a car is uniformly distributed between 11 and 21 minutes. Let…

A: It is an important part of statistics. It is widely used.