At music camp, Addison tracked the number of minutes she practiced her trombone each day.   Practice time (min.)     50   70   90   110   130   150     What was the lower quartile of Addison's practice time?

Q: Complete the following statements. The first quartile (Q1) corresponds to the percentile. The median…

A: Three statements about the quartiles and percentiles relation are given. It is asked to fill in the…

Q: Determine the two values of z such that the middle 58% of the data lie between the two z-values.

A:

Q: Find the standard deviation of this number set: {2, 4, 9} showing all of the steps involved as shown…

A:

Q: A statistics professor made the following histogram for the scores on her class’s first exam.   If…

A: From the Histogram, the scores and the corresponding frequencies are, Given that the passing score…

Q: There is a mound of g pounds of gravel in a quarry. Throughout the day, 300 pounds of gravel is adc…

A: According to question,  In a quarry there is mound of g pounds of gravel. Then  300 pound of gravel…

Q: Kevin runs a race in his hometown

A: Time (since start (in min)) 0 15 30 45 60 75 90 Time (in hours) 0 14 12 34 1 54 32 Speed (mph)…

Q: Complete the table. Grade Frequency Relative frequency % B. 15 % 16 7 % % (Round to two decimal…

A: Frequency data table as follows. GRADE Frequency (f)  A 5 B 15 C 16 D 7 F 1   ∑f = 44…

Q: The accompanying table shows the height​ (in inches) of 8 high school girls and their scores on an…

A: As per guideline expert have to answer first 3 supports only.

Q: A recent study evaluated how addicted teenagers become to nicotine once they start smoking. The…

A: Given data:

Q: For the 20 test scores shown, find the percentile rank for a score of 88. 72 63 92 74 86 50 77 82 98…

A:

Q: What proportion of z scores lie beteeen -2 and +2 in the height in inches data set? Round your…

A:

Q: Answer question part d.    A bag that containd 1450 chocolate chips is in the _____ th percentile

A: Mean(μ)=1252 Standard deviation(σ)=129

Q: Jessica counts how many customers have come into her restaurant for the past 30 days.  The table…

A: frequency distribution

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: Find the percentile for the data value. Data set: 2 2 7 4 2 5 9 9 11 3 2 9 6 1 9; data value: 7

A: Sort the data values in ascending order

Q: (c) Show all details of the test described in part (b) and use a 5 % significance level. Give the…

A: The question is about hypothesis testing.From given computer output :Sample no. of lakes ( n ) =…

Q: Test whether patients getting Treatment 1 are more likely to survive, if 62 out of 82 getting…

A:

Q: A study collects samples of water from the tap in Vacaville and from bottled water available from…

A: The observed pH value is 6.32.The mean pH of Tap water is calculated as follows:

Q: The histogram to the right represents the weights (in pounds) of members of a certain high-school…

A: # Given : The histogram represent the weight in pounds of member of certain high school programing…

Q: Sheri writes down the amount of time in minutes that it takes for her to commute to work each day…

A: The data is provided for the commuting time in minutes to work for 20 consecutive days.Step by step…

Q: 1 2 3 Households 26 406 6

A: According to the data,The number of televisions​ (HD) per household in a small town…

Q: Alex is 80th in his class of 320 students. What is his percentile rank in class?

A: Data given p=80, n=320

Q: The histogram below displays the weights of rainbow trout (in pounds) caught by all visitors at a…

A: From the given chart, the lowest frequency is 1

Q: The histogram below shows the mean annual temperature in degrees Fahrenheit in New Haven,…

A: The question is about graphical representation of the data Given : From histogram :   To find : a )…

Q: M= 90 SD= 7.8 What raw score is needed to be in the top 8%?

A: *Mean μ=90SD σ=7.8Top 8%⇒P(X>x)=0.08⇒P(X≤x)=092Corresponding  z-score is obtained as

Q: A group of students start a walking club. Each student recorded their walking time in April 2022 as…

A: We know that,  Mean = ΣXi/n where ΣXi is the sum of all the terms and n is the sample size.  Here…

Q: Every year, the students at a school are given a musical aptitude test that rates them from 0 (no…

A:

Q: 1.128 Find an SAT percentile. Reports on a student's ACT or SAT results usually give the percentile…

A: Suppose a random variable X, defines the SAT scores of a student.

Q: (c) How many rats took eight trials or more to learn the maze?

A: The provided data above is a representation for the number of rats that learned the maze in…

Q: Data Values 13 19 34 36 46 53 69 75 99 What is the 5th decile?

A: The formula for decile is : Di = (N + 1) * i / 10 Here, we are asked to find 5th decile => i =5…

Q: Sleep apnea is a disorder in which you have one or more pauses in breathing or shallow breaths while…

A: Answer Given Favorable cases [x] =210Sample size [n] =420

Q: Diameter (cm) Area (cm?) 2 3 4 13 28 10 79 16 201 20 314 26. Describe the general trend of the data.

A: The scatter plot can be obtained using EXCEL software. Enter the values of Dimeter in column A and…