Question

The upper arm length of males over 20 years old in the United States is approximately...

The upper arm length of males over 20 years old in the United States is approximately Normal with mean 39.1 cm and standard deviation 2.3 cm. Use the 68-95-99.7 rule to answer the following questions.

(a) What range of lengths covers the middle 99.7% of this distribution?

(b) What percent of men over 20 have upper arm lengths greater than 41.4 cm?

Homework Answers

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
The upper arm length of females over 20 years old in the United States is approximately...
The upper arm length of females over 20 years old in the United States is approximately Normal with mean 35.8 cm and standard deviation 2.1 cm. According to the 68-95-99.7 Rule, what percent of women over 20 have upper arm length between 33.7 cm and 35.8 cm?
The times for the mile run of a large group of male college students are approximately...
The times for the mile run of a large group of male college students are approximately Normal with mean 7.1 minutes and standard deviation 0.79 minutes. Use the 68-95-99.7 rule to answer the following questions. (Start by making a sketch of the density curve you can use to mark areas on.) (a) What range of times covers the middle 99.7% of this distribution? (b) What percent of these men run a mile in more than 7.89 minutes?
There are approximately one billion smartphone users in the world today. In the United States, the...
There are approximately one billion smartphone users in the world today. In the United States, the ages of smartphone users between 13 to 55 approximately follow a normal distribution with approximate mean and standard deviation of 37 years and 8 years, respectively. Using the 68-95-99.7 Rule, what percent of smartphone users are between 29 and 53 years old? (Enter your answer as a percent to ONE decimal place. Do not include the % symbol.)
Return to Example 8.5: Serum cholesterol levels for all males 20 to 35 years old in...
Return to Example 8.5: Serum cholesterol levels for all males 20 to 35 years old in the United States are approximately normally distributed with a mean of 186 mg/dL and standard deviation of 36 mg/dL. Approximately what percent of all males in the United States between 20 and 35 years old have cholesterol levels between 150 mg/dL and 258 mg/dL? (Report your answer to ONE decimal place.) Hint, displayed below% Approximately what percent of all males in the United States...
Suppose a sociologist desires to study the religious habits of 20-year-old males in the United States....
Suppose a sociologist desires to study the religious habits of 20-year-old males in the United States. He draws a sample from the 20-year-old males living in a large American city to make his study. Describe the sampled and target populations. What problems arise in drawing conclusions from this data? How would you design a better approach to address the researcher’s goal?
The distribution of heights of 18-year-old men in the United States is approximately normal, with mean...
The distribution of heights of 18-year-old men in the United States is approximately normal, with mean 68 inches and standard deviation 3 inches (U.S. Census Bureau). In Minitab, we can simulate the drawing of random samples of size 20 from this population (⇒ Calc ⇒ Random Data ⇒ Normal, with 20 rows from a distribution with mean 68 and standard deviation 3). Then we can have Minitab compute a 95% confidence interval and draw a boxplot of the data (⇒...
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary...
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary rivals? How will the acquisition of Reebok by Adidas impact the structure of the athletic shoe industry? Is this likely to be favorable or unfavorable for New Balance? 2- What issues does New Balance management need to address? 3-What recommendations would you make to New Balance Management? What does New Balance need to do to continue to be successful? Should management continue to invest...
Read the following case carefully and then answer the questions. In the movie Face/Off, John Travolta...
Read the following case carefully and then answer the questions. In the movie Face/Off, John Travolta got a new look by exchanging faces with Nicolas Cage. Unfortunately, he got a lot of trouble along with it. John could receive a much less troublesome new look by using Botox, a treatment discovered by Vancouver’s Dr. Jean Carruthers, who came upon the cosmetic potential of Botox in 1982 while treating a woman with eye spasms. Botox is marketed by Allergan, a specialty...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...