Find probability that crew member earns in range per hour

Assignment Help Basic Statistics
Reference no: EM13125189

A recent study of the hourly wages of maintenance crew members for major airlines showed that the mean hourly salary was $20.50, with a standard deviation of $3.50. If we select a crew member at random, what is the probability the crew member earns: a. Between $20.50 and $24.00 per hour? b. More than $24.00 per hour? c. Less than $19.00 per hour?

Reference no: EM13125189

Questions Cloud

What is memorandum : what is memorandum? How can one write it? Is the portrayal accurate? of the criminal justic accurate. Why or why not?
Numerical linear algebra-lu decomposition : Find a matrix A that admits no LU decomposition, even if we only require that L is lower triangular ( not necessarily unit!) and U is upper triangular.
How sample to be accurate within ten peaches per tree : A scientist wishes to find the 98% confidence interval for the mean number of peaches per tree. How many trees does she need to sample to be accurate within 10 peaches per tree?
Compute lu decomposition and gaussian elimination : Use Gaussian elimination with partial pivoting to find matrices L and U such that U is upper triangular, L is lower triangular with | l_ij| = j and LU = A', where A' can be obtained from A by interchanging rows.
Find probability that crew member earns in range per hour : What is the probability the crew member earns: a. Between $20.50 and $24.00 per hour? b. More than $24.00 per hour? c. Less than $19.00 per hour?
Non-linear differential equation word problem : Two chemicals A and B are combined to form a chemical C. The rate of the reaction is proportional to the product of the instantaneous amounts of A and B not converted to chemical C.
Explain concentration of a species : Concentration of a Species, One mole of NOCl gas is added to a 4.0L container. The NOCl undergoes slight decomposition to form NO gas and Cl2 gas.
Essay summary and analysis : Essay 1 - Summary and Analysis, Read Joy Alonso's "Two Cheers for Examinations"
Explain what is the molar concentration of the first cation : which hydroxide precipitates first as NaOh is slowly added to the solution? b) what is the molar concentration of the first cation precipitated when the other cation just starts to precipitate out of solution?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Important information about risk reduction

A person reads a research study of the effectiveness of perineal exercises in preventing urinary incontinence and notes that the number of subjects in each group is 120.

  Sample space for the experiment

In a column, write the sample space for the experiment that consists of observing the day's production.

  Determining sampling with replacement

What is sampling with replacement, and why it is used?

  Test for single population mean

The sample data are summarized by the statistics n = 27, x = 4.6 years, s- 1.9 years.

  Construct a frequency distribution table for data

construct a frequency distribution table for these data. what type of graph would be appropriate to show the frequency distribution for these data?

  Hypothesis testing five step approach

A medical researcher estimates that no more than 55% of U.S. adults eat breakfast every day. In a random sample of 250 U.S. adults, 56.4% say they eat breakfast every day.

  Areas of the associated venn diagram

A and B are two intersecting sets, and a, b, ab, and x represent the usual symbols for the number of elements contained in the four defined areas of the associated Venn Diagram. Find the values of ab and a if:

  Regression model in spss

Which variable is the independent variable and which is the dependent variable? Write out the regression equation and sketch it on the plot. What percentage of the variability in the defect rate can be explained by differences in volume?

  Determining the regression equation

You select a random sample of 16 cities similar to Statesville in demographic and economic characteristics and collect the following data on FOOTAGE (in 10,000 square feet) and RETURN (rate of return as a %). a. Analyze the above output to determi..

  Advertising statistics

A study was done on the accuracy of advertisements by the five types of electronics stores in a city. On each of the six days, items were randomly selected from the advertisements for each type of store and the actual price was compared to the adv..

  Mean-standard deviation of the sampling distribution

What is the mean and standard deviation of the sampling distribution when we take all samples of size25?

  Decision rule and p-value-radial truck tire

The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. The standard deviation of the mileage is 5,000 miles.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd