Question

4) Based on the frequency distribution below, what would the cut-off score be if only the...

4)

Based on the frequency distribution below, what would the cut-off score be if only the top 10% of students received a prize?

SCORE           FREQ.

60-64               5

55-59               9

50-54               12

45-49               17

40-44               18

35-39               11

30-34               6

Select one:

( ) a. 58

( ) b. 55

( ) c. 54

( ) d. 23

( ) e. 35

Homework Answers

Answer #1

Total number of students = 5+9+12+17+18+11+6

= 78.

If top 10% students received prize, it means that top 7.8, so only top 7 students will receive the prize.

So, the cut off score would be =

Lower bound of upper class - ((Total students required- Students of the upper class)/Students of current class width )* current class width

= 59 - ( (7-5)/9)*5

= 59 - ((2/9)*5)

= 57.889.

So, the cut off score would be 58 (rounded to nearest integer). So option a is the correct answer.

IF YOU FIND THIS ANSWER HELPFUL, PLEASE UP VOTE.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Find the measures of center for the following: Data Frequency 30-34 2 35-39 4 40-44 6...
Find the measures of center for the following: Data Frequency 30-34 2 35-39 4 40-44 6 45-49 11 50-54 18 55-59 15 60-64 11 65-69 1 70-74 5 mode= median= mean (round to 4 decimal places)=
Complete the tasks and answer the questions below. a. Create a frequency distribution and a histogram...
Complete the tasks and answer the questions below. a. Create a frequency distribution and a histogram for the set. b. Why did you select the class interval you used? c. Is this distribution skewed? How do you know? Class interval Frequency 55- 59 7 50- 54 5 45-49 5 40-44 7 35- 39 2 30- 34 3 25- 29 5 20- 24 4 15- 19 5 10- 14 3 5-9 3 0-4 1
Approximate the measures of center for following GFDT. Data Frequency 30 - 34 1 35 -...
Approximate the measures of center for following GFDT. Data Frequency 30 - 34 1 35 - 39 3 40 - 44 4 45 - 49 14 50 - 54 24 55 - 59 14 60 - 64 9 65 - 69 0 70 - 74 6 mode = median = mean =      Report mode and median accurate to one decimal place. Report the mean accurate to two decimal places (or enter as a fraction).
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean...
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 52.2 degrees. Low Temp (°F)   Frequency 40-44 1 45-49 5 50-54   11 55-59 5 60-64 2
4.) Find the measures of center for following. Data Frequency 40 - 44 13 45 -...
4.) Find the measures of center for following. Data Frequency 40 - 44 13 45 - 49 18 50 - 54 15 55 - 59 10 60 - 64 6 65 - 69 6 70 - 74 4 75 - 79 1 80 - 84 2 5.) Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z-score of a man who is 62.5 inches tall. (to 4 decimal places)
Create a frequency distribution using age and male-yes. It's supposed to be a bar chart. Age...
Create a frequency distribution using age and male-yes. It's supposed to be a bar chart. Age 55 50 42 47 58 67 64 64 62 43 51 58 42 51 66 69 57 48 51 50 43 46 49 48 55 51 50 41 47 55 54 52 64 68 51 40 53 67 65 47 48 56 64 45 57 50 52 60 66 70 63 63 63 32 70 66 50 67 63 59 63 34 70 50...
Suppose a professor gives an exam to a class of 40 students and the scores are...
Suppose a professor gives an exam to a class of 40 students and the scores are as follows. (Type the data set in StatCrunch.) 35 44 46 47 47 48 49 51 53 54 55 55 57 57 57 58 59 59 59 59 60 60 60 60 60 62 62 62 64 68 69 70 72 73 73 75 75 77 82 88     a.    Find each of the following: Mean: Median: Standard deviation: Z-score for a student who...
Q1. A clinical trial is run to assess the effects of different forms of regular exercise...
Q1. A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 and 29. Participants in the study are randomly assigned to one of three exercise groups - Weight training, Aerobic exercise, or Stretching/Yoga – and instructed to follow the program for 8 weeks. Their HDL levels are measured after 8 weeks and are summarized below. Weight Training Aerobic Exercise Stretching/Yoga 48 38 56 49 41...
Can you please explain how can we find the 50th percentile point using this grouped frequency...
Can you please explain how can we find the 50th percentile point using this grouped frequency table? I know that it falls between scores of 56.4 % and 34.6% which corresponds to a score between 19.5 and 24.5. How can we find the exact 50th percentile point? what is the easiest way to do so? Is there a formula for that? INTERVALS FREQUENCIES RELATIVE FREQUENCIES CUMULATIVE FREQUENCIES CUMULATIVE PERCENTAGE 60-64 1 .01 78 100 55-59 1 .01 77 99 50-54...
1.) In a mid-size company, the distribution of the number of phone calls answered each day...
1.) In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 48 and a standard deviation of 5. Using the empirical rule, what is the approximate percentage of daily phone calls numbering between 33 and 63? Do not enter the percent symbol. ans = % 2.) Approximate the mean for following GFDT. Data Frequency 30 - 34 1 35 - 39 1...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT