math

A given distribution has a population mean, μ, of 108 and a population standard deviation, σ, of 14.  What z-score would be associated with the value x = 88?

Round to two decimal places, as needed.

Your Answer:

Question 2 options:

A given distribution has a population mean, μ, of 113 and a population standard deviation, σ, of 6.  What z-score would be associated with the value x = 149?

Round to two decimal places, as needed.

Your Answer:

Question 3 options:

A given distribution has a population mean, μ, of 125 and a population standard deviation, σ, of 15.  Compute the raw, x-value associated with a Z-score of -2.67.

Round to two decimal places, as needed.

Your Answer:

Question 4 options:

A given distribution has a population mean, μ, of 123 and a population standard deviation, σ, of 12.  Compute the raw, x-value associated with a Z-score of 1.38.

Round to two decimal places, as needed.

Your Answer:

Question 5 options:

Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 88 and 116?

Question 6 options:

Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 88 and 102?

Question 7 options:

Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 116 and 130?

Question 8 options:

Question 1 (1 point)

What is the range of the following: 73, 31, 33, 40, 24, 14

Round to 2 decimal places as needed.

Your Answer:

Question 1 options:

What is the range of the following: 41, 70, 39, 22, 46, 12

Round to 2 decimal places as needed.

Your Answer:

Question 2 options:

Kim Kardashian is interested in studying the phenomenon of selfies more deeply.  She randomly selects 20 of her Instagram followers' feeds.  For each selected feed, she records the number of selfies posted in the past year and the number of people in the foreground of the picture.  What is the sample of this study?

Question 3 options:

Huck Finn is interested in the average length of catfish in the Mississippi river bordering St. Louis.  To collect his sample, Huck breaks the river into 5 regions and catches 8 catfish from each region.  What method did Huck use to select his sample?

Question 4 options:

Horace Horsecollar is interested in the opinion of vacationers at Disney World.  He creates a short survey and administers it to every 1000th person to enter the park, starting with the 364th person.  What method did Horace use to select his sample?

Question 5 options:

Compute the mean of 43, 33, 46, 51, 15, 34.

Round to 2 decimal places as needed

Your Answer:

Question 6 options:

Compute the mean of 67, 38, 52, 25, 34, 18, 95.

Round to 2 decimal places as needed

Your Answer:

Question 7 options:

Compute the median of 43, 17, 60, 46, 18.

Round to 2 decimal places as needed.

Your Answer:

Question 8 options:

Compute the median of 31, 54, 14, 39, 42, 48

Round to 2 decimal places as needed

Your Answer:

Question 9 options:

What is the standard deviation of the following: 33, 19, 19, 11, 16, 48

Round to 2 decimal places as needed.

Your Answer:

Question 10 options:

What is the standard deviation of the following: 37, 16, 27, 43, 17, 31

Round to 2 decimal places as needed.

Your Answer:

Question 11 options:

Jedi Master Astaal Vibum is interested in studying the midi-clorian count in Jedi younglings and how those levels change as they become padawan and ultimately full Jedi knights.  To begin the study, Astaal randomly selected 43 Jedi younglings and measured their midi-clorian counts.  Measurements will be taken annually until they leave the Jedi order or reach the level of Jedi Master.  What is the population of this study?

Question 12 options:

Demarion Santana is interested in studying the growth rates of capsicum annuum (pepper) plants under bridges in California.  He randomly selects 50 bridges in California and records the frequency, height, and number of peppers on any plants growing under these bridges.  His results were published in the  Almanac of Questionable Statistics, Vol 1 (2016).  What is the population in this study?

Question 13 options:

What is the mode of the following: 41, 78, 94, 78, 78, 11, 65, 41, 52

Round to 2 decimal places as needed.

Your Answer:

Question 14 options:

What is the midrange of the following: 20, 72, 48, 89, 22, 51, 8, 16

Round to 2 decimal places as needed.

Your Answer:

Question 15 options:

A given distribution has a population mean, μ, of 102 and a population standard deviation, σ, of 7.  What z-score would be associated with the value x = 132?

Round to two decimal places, as needed.

Your Answer:

Question 16 options:

A given distribution has a population mean, μ, of 140 and a population standard deviation, σ, of 10.  What z-score would be associated with the value x = 108?

Round to two decimal places, as needed.

Your Answer:

Question 17 options:

A given distribution has a population mean, μ, of 127 and a population standard deviation, σ, of 5.  Compute the raw, x-value associated with a Z-score of -2.76.

Round to two decimal places, as needed.

Your Answer:

Question 18 options:

A given distribution has a population mean, μ, of 137 and a population standard deviation, σ, of 9.  Compute the raw, x-value associated with a Z-score of -0.15.

Round to two decimal places, as needed.

Your Answer:

Question 19 options:

Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 88 and 102?

Question 20 options:

Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 116 and 144?

Question 21 options:

Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 88 and 130?

Question 22 options: