Mathematics, 05.07.2019 21:10 TheViperMlg23676

The usa today reports that the average expenditure on valentine's day is $100.89. do male and female consumers differ in the amounts they spend? the average expenditure in a sample survey of 40 male consumers was $135.67, and the average expenditure in a sample survey of 31 female consumers was $68.64. based on past surveys, the standard deviation for male consumers is assumed to be $39, and the standard deviation for female consumers is assumed to be $20.
1. what is the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females (to 2 decimals)?
2. at 99% confidence, what is the margin of error (to 2 decimals)?
3. develop a 99% confidence interval for the difference between the two population means (to 2 decimals).
( , )

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 17:30

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Answers: 2

Answer

Mathematics, 21.06.2019 18:30

The bake stars picked 907 apples last weekend at a local orchard they made caramel apples and sold them in the bakery in trays of 6

Answers: 1

Answer

Mathematics, 21.06.2019 19:00

Will give brainliest plz hurry lexie surveyed 4 teenagers to find out approximately how many hours, per week, they read for fun, and how many siblings they have. brooke said she reads about 10 h a week for fun, and that she has 5 siblings. celia said she has 1 brother and 1 sister and reads for fun about 3 h each week. henry said he has 2 brothers and reads for fun about 30 min each week. jude said he doesn't read for fun and has 3 brothers and 3 sisters. use this information to complete the data table. express your answers as whole numbers or decimals. name hours of fun number of siblings brooke celia __ henry jude

Answers: 2

Answer

Mathematics, 21.06.2019 20:30

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Answers: 1

Answer

You know the right answer?

The usa today reports that the average expenditure on valentine's day is $100.89. do male and female...

Questions