Rhenz scored 32 points on their Math summative test. The following dataare the summative test scores of Grade 10 Competence in Math. Hewants to identify the percentage of his score among the class' scores.Construct a frequency distribution table. Interpret results and formulateconclusion. Compute the percentile rank of grouped data. Use the formulabelow.(Ctrl)30133118363032179113735302553631132751253586353026241836443351736-PPR =- [201²-[(P - LB) fr + cfriwhere: PRpercentile rank, the answer will be a percentageP = raw score or value for which one wants to find aPercentile rankLB = lower boundary of the kth percentile classNtotal frequencycfp = cumulative frequency of all the values below the criticalvalue253036361035

We create the class interval then we count the frequencies for every class.

Answered: Rhenz scored 32 points on their Math…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Jocelyn believes that the amount of sleep she tends to get on weekends differs from the amount of sleep she tends to get during the school week. To investigate this claim, she randomly selects 10 weekend days and 10 school days. She consults her smart watch to determine the number of hours she slept for each of the selected days. Here are the data. School week: 7, 7.5, 8, 6.5, 8, 7.5, 7, 6.5, 7, 8Weekend: 9.5, 9.5, 8.25, 8.5, 7.5, 10.25, 8, 7, 9.5, 10 Jocelyn would like to determine if these data provide convincing evidence that the true mean amount of sleep she gets on the weekend differs from the true mean amount of sleep she gets during the school week. She tests H0: μS – μW = 0, Ha: μS – μW ≠ 0, where μW = the true mean amount of sleep Jocelyn gets on the weekend and μS = the true mean amount of sleep she gets during the school week. The conditions for inference are met. What are the values of the test statistic and P-value for a t-test about a difference in means? Find the…
A sales manager recorded the number of sales made by each of the 300 salespeople working athis chain of furniture outlet stores on a Saturday and created the following table.# Sales (bins) Proportion of salespeople in this bin0 – 3 0.053 – 6 0.156 – 9 0.30 9 – 12 0.3512 -15 0.15a. What is the unit of observation in this sample?b. What is the variable collected?c. Draw and label the histogram for this dataset.d. Which is the modal category?e. Calculate the proportion of the salespeople made 9 or more sales.f. Calculate the number of salespeople who made between 0 and 9 sales.
The organization of the Girl Scouts has completed its annual cookie drive. The sales are reported in the accompanying ogive. Approximate the percentage of girls who sold more than 70 boxes of cookies.
Find the 5 number summary for the data shown 17 21 29 30 36 42 56 60 88 91 94 97 5 number summary:Use the Locator/Percentile method described in your book, not your calculator.
For each problem, you must state the hypotheses, calculate the test statistic, and explain your decision. The following table reports the relationship between class standing and political orientation for a random sample of 267 college students. a. The table is constructed assuming that class standing is the independent variable. Please add %s in the appropriate position (columns or rows) to describe the pattern of the relationship. b. Is there a statistically significant relationship between these variables?
Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 5 1 9 2 6 3 4 4 1 Table 2.67 Construct a histogram of the data. Complete the columns of the chart.
Fifty randomly selected car salespersons were asked the number of cars they generally sell in one week. Nine people answered that they generally sell three cars; thirteen generally sell four cars; ten generally sell five cars; seven generally sell six cars; eleven generally sell seven cars. Complete the table. Data Value (# cars) Frequency Relative Frequency Cumulative Relative Frequency 3 4 6. 7
The chart below represents the number of inches of snow for a seven-day period. Sunday Monday Tuesday Wednesday Thursday Friday Saturday 2 5 3 10 0 4 2 Find the mean, median, and mode. Which is the best measure of central tendency? Remove Wednesday from the calculations. How does that impact the three measures of central tendency? Describe the effect outliers have on the measures of central tendency.
44 35 40 44 44 39 40 47 45 45 44 44 46 Find the mean cost. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The mean cost is (Round to one decimal place as needed.) B. There is no mean cost. Does the mean represent the center of the data? A. The mean represents the center. B. The mean does not represent the center because it is the largest data value. C. The mean does not represent the center because it is not a data value. D. The mean does not represent the center because it is the smallest data value. OE. There is no mean cost. Find the median cost. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. The median cost is (Round to one decimal place as needed.) OB. There is no median cost. 40 0 0 0 O
Consider the following data set: 38 24 32 18 25 Find the 36th percentile for this data. 36th percentile =
Please help find the tstat. Thanks.

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