Question

In: Statistics and Probability

Measure the length of your pinky finger (in centimeters). Randomly survey 30 adults for their pinky...

Measure the length of your pinky finger (in centimeters).

Randomly survey 30 adults for their pinky finger lengths. Round the lengths to the nearest 0.5 cm.

6.0

6.5

6.5

6.0

7.0

5.5

6.0

7.0

6.0

7.0

5.5

6.5

6.5

6.5

6.0

5.0

5.5

6.0

6.0

5.0

7.5

5.0

5.5

6.0

6.0

5.5

6.0

5.5

6.0

6.0

27. Using the theoretical distribution you found above, complete the following statements. Use a normal approximation based on the sample mean and standard deviation.

  1. (2 points) IQR = _______
  2. (2 points) The 15th percentile is _______.
  3. (2 points) The 85th percentile is _______.
  4. (2 points) Median is _____

Please show calculations. thank you

Solutions

Expert Solution

Solution:

orchestra answered 2 years ago
Next > < Previous

Related Solutions

The accompanying data are the length​ (in centimeters) and girths​ (in centimeters) of 12 harbor seals....
The accompanying data are the length​ (in centimeters) and girths​ (in centimeters) of 12 harbor seals. Find the equation of the regression line. Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given​ x-values, if meaningful. If the​ x-value is not meaningful to predict the value of​ y, explain why not. ​(a) x=140 cm ​(b) x=172 cm ​(c) x=164 cm ​(d)...
Adults aged 18 years old and older were randomly selected for a survey on obesity. Adults...
Adults aged 18 years old and older were randomly selected for a survey on obesity. Adults are considered obese if their body mass index (BMI) is at least 30. The researchers wanted to determine if the proportion of women in the south who are obese is less than the proportion of southern men who are obese. The results are shown in the table below. # who are obese sample size Men 42,769 155,525 Women 67,169 248,775 At the1% level of...
A survey was conducted to measure the number of hours per week adults in the United...
A survey was conducted to measure the number of hours per week adults in the United States spend on home computers. In the survey, the number of hours was normally distributed, with a mean of 7 hours and a standard deviation of 1 hour. A survey participant is randomly selected. Which of the following statements is true? (a) The probability that the hours spent on the home computer by the participant are less than 4.5 hours per week is 0.9938....
A survey was conducted to measure the number of hours per week adults in the United...
A survey was conducted to measure the number of hours per week adults in the United States spend on home computers. In the survey, the number of hours was normally distributed, with a mean of 7 hours and a standard deviation of 1 hour. A survey participant is randomly selected. Which of the following statements is true? (a) The probability that the hours spent on the home computer by the participant are less than 4.5 hours per week is 0.9938....
A survey of 1383 U.S. adults is taken to measure support for increasing federal funding for...
A survey of 1383 U.S. adults is taken to measure support for increasing federal funding for research on wind, solar, and hydrogen technology. a) Suppose the sample finds 979 people who would support the increase in funding. Construct and interpret a 90% confidence interval for the proportion of all Americans that would support the funding. (assume all checks are met) b) Currently politicians claim that between 60% and 75% of Americans would support such funding. Find the minimum sample size...
A survey of 500 randomly selected adults found that 57% say that they would take a...
A survey of 500 randomly selected adults found that 57% say that they would take a ride in a fully self-driving car. The 95% confidence interval for the true proportion of all adults who would take a ride in a full self-driving car is found to be (0.5266, 0.6134). Can we conclude that the majority of all adults would take a ride in a fully self-driving car? Yes; Since the confidence interval limits are both greater than 50%, we can...
Please show your calculations and steps. In a recent national survey, 30 Canadian adults aged 18-24...
Please show your calculations and steps. In a recent national survey, 30 Canadian adults aged 18-24 reported having used cannabis for the first time since its legalisation in 2018 compared to 68 among the 25-44-year-olds. Out of the 1500 survey respondents, 125 were 18-24-year-olds and 400 were in the 25-44 age group. The Public Health Agency has been concerned that the first time use of cannabis among the younger cohort is higher than that among the older cohort. a) Formulate...
In a survey of 1000 randomly selected adults in the United States, participants were asked what...
In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated Press, August 17, 2005). In what might seem like a contradiction, math was chosen more often than any other subject in both categories! Math was chosen by 228 of the 1000 as the favorite subject, and it was also chosen by 366 of the 1000 as the least...
In 2015 as part of the General Social Survey, 1220 randomly selected American adults responded to...
In 2015 as part of the General Social Survey, 1220 randomly selected American adults responded to this question: “Some countries are doing more to protect the environment than other countries. In general, do you think that America is doing more than enough, about the right amount, or too little?” Of the respondents, 492 replied that America is doing about the right amount. What is the 95% confidence interval for the proportion of all American adults who feel that America is...
In a survey of 1000 randomly selected adults in the United States, participants were asked what...
In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated Press, August 17, 2005). In what might seem like a contradiction, math was chosen more often than any other subject in both categories! Math was chosen by 222 of the 1000 as the favorite subject, and it was also chosen by 362 of the 1000 as the least...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT