Question

A) The life spans of a species of fruit fly have a​ bell-shaped distribution, with a mean of 30 days and a standard deviation of 55 days.

​(a) The life spans of three randomly selected fruit flies are 32 ​days, 26 ​days, and 43 days. Find the​ z-score that corresponds to each life span. Determine whether any of these life spans are unusual.

​(b) The life spans of three randomly selected fruit flies are 20 ​days, 40 ​days, and 35 days. Using the Empirical​ Rule, find the percentile that corresponds to each life span.

B) The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The distributions of the ages are approximately​ bell-shaped. Compare the​ z-scores for the actors in the following situation.

Best Actor		Best Supporting Actor
muμequals=41.0		muμequals=51.0
sigmaσequals=6.6		sigmaσequals=16

In a particular​ year, the Best Actor was 40 years old and the Best Supporting Actor was 68 years old.

C) The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The distributions of the ages are approximately​ bell-shaped. Compare the​ z-scores for the actors in the following situation.

Best Actor		Best Supporting Actor
muμequals=41.0		muμequals=50.0
sigmaσequals=7.9		sigmaσequals=15

In a particular​ year, the Best Actor was 40 years old and the Best Supporting Actor was 84 years old.

best actor z =

best supporting actor z=

D)

The measure of position called the midquartile of a data set is found using the formula

StartFraction Upper Q 1 + Q 3 / 2.

Find the midquartile of the given data set.

4 9 5 6 11 6 10 5 2 9

The midquartile is

E) The measure of position called the midquartile of a data set is found using the formula Q 1 + Q 3 / 2.

Find the midquartile of the given data set.

24 37 47 33 35 40 39 25 32 23 38 41

Answer 1

Answer

l-30 (x.92) 2-30 26 -0 (26) 0,012ฯ242 430 O 236 26 3ry

z 20-31 -0-1818 6 US ча-30 cHo ST 0-18 2 C3%j) D·0909090 r4

Note.

Please Frame Separate Question for Other Question.As Because Its Chegg Policy We cant Solve More than One