According to recent research, about 15% of all adults nationally who use the internet use Twitter. Blank #1: Out of 30 selected adults who use the internet, what is the mean and standard deviation of the number who use Twitter (the expected value and the give or take amount). Report your answer as mean,stddev with no extra spaces. If any rounding is necessary, do so to two decimal places. Blank #2: Out of 30 people selected, what is the probability that the number of persons who use Twitter will be less than 5? Report your answer with two decimal places.

According to recent research, about 15% of all adults nationally who use the internet use Twitter. Blank #1: Out of 30 selected adults who use the internet, what is the mean and standard deviation of the number who use Twitter (the expected value and the give or take amount). Report your answer as mean,stddev with no extra spaces. If any rounding is necessary, do so to two decimal places. Blank #2: Out of 30 people selected, what is the probability that the number of persons who use Twitter will be less than 5? Report your answer with two decimal places.

Name: According to recent research, about 15% of all adults nationally who
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: According to recent research, about 15% of all adults nationally who use the internetuse Twitter.Blank #1: Out of 30 selected adults who use the internet, what is the mean andstandard deviation of the number who use Twitter (the expected value and t

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the standard deviation is 3 inches. If Zsike is 67 inches tall, what is her z-score?
In a certain suburb, the mean house price in 2009 was $ 225,000. A real estate agent believes that the mean house price in that suburb has increased since 2009. Please state the null and alternative hypothesis.
On the past mathematics test, the bottom 20% of students failed to pass the test. The mean for the test was 55 and the standard deviation was 11. what was the passing score
From the states data set, get the descriptive statistics for the violent crime rate. For this assignment, you will need the mean, standard deviation, five-number summary (minimum, 25th percentile, median, 75th percentile, maximum), and interquartile range. Submit all answers as whole numbers--no decimal points. If you have to calculate the interquartile range by hand, you may calculate it using whole numbers as the 25th and 75 percentile. How would i calculate this?
Jasmine, Jamal, and Jessa all got the same mean grade (2.7) on their quizzes last semester. The standard deviations were 0.5 for Jamal, 1.1 for Jessa, and 0.2 for Estrella. Which student received the highest grades from the quizzes?
There are eight patients waiting in a doctor's waiting room. They have been waiting for 9 minutes, 2 minutes, 5 minutes, 4 minutes, 12 minutes, 7 minutes, 8 minutes, and 11 minutes. Calculate the population standard deviation for the patients' wait times (in minutes). Round to the nearest hundredth as needed.
In a survey of women in Canada, the mean height was 65 inches with a standard deviation of3 inches. What height represents the 90th percentile?
Ten year old girls, the Mean is 54.4, the standard deviation 2.7, 95 percentile in height. How tall is she.
The average on the Math section of the SAT was 500 with a standard deviation of 100. What score must you earn to be in the top 10% of test-takers?
A business school dean in Ohio wants to know if graduates who completed an internship during their undergraduate years earn more than business undergraduates who do not complete an internship while in college. Based on national survey from 1,500 business alumni with less than six years of work experience, they earn on average $50,970 with a standard deviation of $12,976. Business alumni from the Ohio school who completed internships on average earned $53,497. The dean wants you to be 96% confident in your results. a. State in statistical terms the null and alternative hypotheses. b. Determine the appropriate test statistic (z or t). c. Determine the critical value(s). d. Compute the test statistic. e. Make a decision on the hypotheses. (which hypothesis is correct?) f. Determine the p-value for the test statistic.
In a study of Ridge View's boys' basketball team, the average height is 68 inches and standard deviation is 4 inches. Find the probabilty. a boy is over 78 inches