Suppose the average rate of a hotel in different cities is recorded in the table to the right

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Ch2 Descriptive Statistics 2-Lab Assignment

: Suppose the average rate of a hotel in different cities is recorded in the table to the right. Use the table to answer the following questions:

Note: Please provide the manually calculated answers at a separated page if necessary.

a) Find the sample mean, x.

b) Find the sample median, x.

c) From your answers in part (a) and (b), do you think that the data is symmetric, right-skew,

left-skew and why?

d) Find the sample standard deviation, s

e) Find the population standard deviation, σ.

f) A value would be considered significantly high if it was greater than what value?

g) What is the z score for the city Houston?

h) What percentile is Detroit at $144 per night?

i) What is the 5-number summary for the data?

j) Draw a regular boxplot for the data.

k) Are there any Outliers? If so, what data values and what corresponding city?

1) Draw a modified boxplot for the data.

Attachments:

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