9 b-day invitationspy stuffO Surveillance Gear...ThesaurusDZL BeachBoardMCGraw Hill Conn.*M Nutritioncalc PluseworkQuestion 1 of 6<>-/2View PoliciesCurrent Attempt in ProgressThe U.S. Bureau of Labor Statistics released hourly wage figures for various countries for workers in the manufacturing sector. Thehourly wage was $30.67 for Switzerland, $20.20 for Japan, and $23.82 for the U.S. Assume that in all three countries, the standarddeviation of hourly labor rates is $3.00.Appendix A Statistical Tablesa. Suppose 35 manufacturing workers are selected randomly from across Switzerland and asked what their hourly wage is. What is theprobability that the sample average will be between $30.00 and $31.00?b. Suppose 33 manufacturing workers are selected randomly from across Japan. What is the probability that the sample average willexceed $21.00?c. Suppose 48 manufacturing workers are selected randomly from across the United States. What is the probability that the sampleaverage will be less than $23.00?(Round the values of z to 2 decimal places, e.g. 15.25. Round your answers to 4 decimal places, e.g. 0.2513.)a.b.C.

The random variable X follows normal distribution. We have to find the probability of sample mean by…

Answered: The U.S. Bureau of Labor Statistics…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose we want to know the mean number of shurikens thrown each night by ninjas in Konoha village. Getting this information from every ninja in the village would take forever. Instead, we randomly select 20 ninjas from the ninja school that is closest to us. a. Identify the population of interest in this survey b. Describe the parameter of interest in this survey. c. Identify the sample of interest in this survey.
Suppose we want to test whether or not the average SAT score at the University of Seychelles is significantly larger than the average SAT score at Vermont. Taking a random sample, we manage to get the following seven scores from Vermont students: Vermont: 1340 1500 1430 1440 1380 1470 1290 and the following nine scores from Seychelles students: Seychelles: 1540 1480 1390 1450 1440 1350 1520 1400 1600 Assuming that the standard deviation in SAT scores for students at Seychelles and Vermont is the same and equal to 77 points, test at the α=:05 significance level whether or not the average SAT score atthe University of Seychelles is larger than the average SAT score at Vermont.
1. According to one study, the average hours of sleep on a weeknight for men was 6.9 hours with a standard deviation of 1.5 hours. a. Find the proportion of men who sleep for more than 8 hours per night. b. Find the proportion of men who sleep for less than 6 hours per night. c. Find the proportion of men who sleep between 6-8 hours per night. d. Find the number of hours that represents the 90th percentile.
If the mean speed for a major league fast ball is 90 miles per hour and the standard deviation is 5 miles per hour, what would the standardized score be for a pitch that is 97 miles per hour? O 0.4 4.0 1.4 O 1.0
4. The lowest and the highest data value of a data set are 12 and 28 respectively, then the approximate standard deviation is:
Suppose two graduating seniors, one a marketing major and one an accounting major, are comparing job offers. The accounting major has an offer for $53,000 per year, and the marketing major has an offer for $49,000 per year. Summary information about the distribution of the offers is shown below: Accounting: mean: 50000 standard deviation: 1500 Marketing: mean: 45500 standard deviation: 1000 Which offer is more attractive and why?
Read the following prompt and complete 3.a and 3.b
Use Figure 9.5 to determine the achieved upper deviation rate and the above table to determine the assessed level of control risk under the following circumstances. Assume that the sample size was 75 items. (Round your answers to 1 decimal place.) Answer is not 13.6% for the last one
The average weekly salaries (in dollars) earned by teachers in 1994 are given below for five European countries. Country Weekly Salary France $1,213 Germany $1,752 Greece $824 Ireland $1,101 Italy $1,006 a) What is the range for salaries? b) What is the standard deviation of the salaries
Ms. Lorraine Finch, a fifth grade teacher has a large class of 50 students for the 2018 - 2019 school year. After giving a reading comprehension test, Ms. Finch decided to do a brief statistical analysis. A frequency distribution of the results is presented below. a. Fill in the missing pa rts of Ms. Finch’s frequency distribution. Do any necessary scrap work in the space next to the table. b. Construct a histogram of the frequency distribution. c Is the distribution of test scores normal? Explain. Score Frequency Relative Frequency 84 2 0.04 85 5 0.1 86 0.08 87 8 0.16 88 10 89 90 5 0.1 91 4 0.08 92 3 0.06
Use a calculator to find the standard deviation of this sample data: 122 141 140 118 155 174 198 133 168 195 Round to two decimals. Submit Question

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