Question

answer all these questions please with the right question number next to its letter QUESTION 18...

answer all these questions please with the right question number next to its letter

QUESTION 18

What is the appropriate number of classes for a frequency distribution with 200 observations (n)?

A

5

B

6

C

7

D

8

QUESTION 19

For salaries of $152,000, $148,000, $25,000, $156,000 and $151,000, the arithmetic mean would be an appropriate measure of central tendency to use.

A)True

B) False

QUESTION 20

In a positively skewed distribution, the mode is greater than the median.

A) True

B) False

Homework Answers

Answer #1

( 1 )

Answer : Option ( D )

From strugges rule

# of classes = 1 + 3.322 log (N )

                    = 1 + 3.322 log (200 )

                    = 8.6 ~ 8

( 2 )

Answer ; True

Because there are no outliers

( 3 )

Answer : False

Because in positively skewed distribution, the mode is smaller than the median.

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
1.The median is a measure of central tendency (or location)? True False 2,The mean computed from...
1.The median is a measure of central tendency (or location)? True False 2,The mean computed from ungrouped data is a more accurate measure than the mean computed from grouped data? True False 3.The mode for the following values is "0"?...3.4, 4.7, 1.9, 7.6, 6.5. True False 4.A distribution of data that is positively skewed is left skewed? True False 5.In a numerical batch of data the value of "Q3" can never be smaller than the value of "Q1"? True False  ...
answer all these questions please with the right question number next to its letter QUESTION 27...
answer all these questions please with the right question number next to its letter QUESTION 27 If a you want to investigate the tread life of your company’s tires, and you took a sample of 10 tires and constructed a 95% confidence interval, degrees of freedom and t value would be A 11 degrees of freedom and t value of 2.201 B 10 degrees of freedom and t value of 2.228 C 9 degrees of freedom and t value of...
answer all these questions please with the right question number next to its letter 1-When the...
answer all these questions please with the right question number next to its letter 1-When the population standard deviation is unknown AND the sample size is less than 30, the test statistic to use is: A t B The Binomial Dristribution C The Z Distribution D Chi-Square 4-What do we call the statement (rule you create) that determines if the null hypothesis is rejected? A Decision rule B Test statistic C Alternate hypothesis D Critical mass 8- The mean length...
QUESTION 1 [13 MARKS] Write down only the letter corresponding to your choice next to the...
QUESTION 1 [13 MARKS] Write down only the letter corresponding to your choice next to the question number. 1.1. A random variable that can assume only a finite number of values is referred to as a a) Infinite sequence b) Finite sequence c) Discrete random variable d) Discrete probability function e) All of the above 1.2 Which one of the following statements is incorrect? a) A data set provides information about people, objects or other entities. b) If the possible...
Answer all of these questions with the right question number next to the correct choice (letter)....
Answer all of these questions with the right question number next to the correct choice (letter). 7)Which of the following is NOT considered to be an example of direct placement of securities? A)You borrow $100 from your uncle Raymond and you write him an IOU for good measure. B)You buy 100 shares of Dell stock from your broker. C)Dell places a new bond issue in the market through Merryll-Lynch. D)You borrow $25,000 from your bank to purchase a fully loaded...
answer all these questions please with the right question number next to its letter 9-Test at...
answer all these questions please with the right question number next to its letter 9-Test at the 0.01 level the statement that 55% (proportion) of those families who plan to purchase a vacation residence in Florida want a condominium. The null hypothesis is   π=.55   and the alternate is π≠.55    . A random sample of 400 families who planned to buy a vacation residence revealed that 228 families want a condominium. Which of the following are correct? A p=.57; the critical...
Answer all these questions with the right answer letter next to each question number 1-A company's...
Answer all these questions with the right answer letter next to each question number 1-A company's normal operating activity is to produce 570 units per month. During its first two months of operations, it produced 135 units per month. Following a great article about the product, product sales spiked to 2,300 units per month, but the spike only lasted for one month. Which of the following best approximates the company's relevant range? Multiple Choice A-520 – 580 units B-135 –...
Answer True or False for each of the following. If your answer is FALSE, provide an...
Answer True or False for each of the following. If your answer is FALSE, provide an example that proves your point. If your answer is true, explain. Given a typical set of numerical data with an ODD number of values. 1. The mean is always one of the data values. 2. The median is always one of the data values 3. The mode is always one of the data values. 4. The range measures the variability of the given data...
Answer all these questions with the right answer letter next to each question number 47-Jasmine Inc....
Answer all these questions with the right answer letter next to each question number 47-Jasmine Inc. sells a product for $66 per unit. Variable costs per unit are $34, and monthly fixed costs are $275,200. a. What is the break-even point in units? b. What unit sales would be required to earn a target profit of $153,600? c. Assume they achieve the level of sales required in part b, what is the margin of safety in sales dollars? 48-Marcy has...
You are studying the impact of the number of prior arrests on sentence length, in months,...
You are studying the impact of the number of prior arrests on sentence length, in months, for a sample of 94 criminal defendants from the Prince George’s County District Court.  The following frequency distribution represents the number of prior arrests for your sample of 94 defendants.   Note that, this assignment requires that you calculate the cumulative frequency, percentage, cumulative percentage, etc….etc. Prior Arrests         f 0                          20 1                          16 2                           8 4                          10 5                           9 6                           5 10                          7 11                          6 15                          5...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT