Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Over last several years, the employ of cell phones has raised dramatically. According to the recent poll, the mean talking time for each month for cell phones was 372 minutes for men and 275 minutes for women, while the mean talking time for each month for traditional home phones was 334 minutes for men and 510 minutes for women.

Assume that the poll was based on the sample of 100 men and 100 women, and that the standard deviation of talking time for each month for cell phones was 120 minutes for men and 100 minutes for women, while the standard deviation of talking time per month for home phones was 110 minutes for men and 150 minutes for women. At the .05 level of significance, is there evidence of the difference in variability of monthly talking time on cell phones for men and women?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923262

Have any Question? 


Related Questions in Statistics and Probability

1 the total variance in a set of scores can be partitioned

1. The total variance in a set of scores can be partitioned into two components. What are they, and how do they differ? 2. What are some factors that contribute to error variance in a set of data? 3. Generally, do resear ...

Question 1 -happy harrys hamburgers recently commissioned a

Question 1 - Happy Harry's Hamburgers recently commissioned a top tier consulting company to develop a new location selection process. However, after receiving the first invoice from the consulting company, Happy Harry w ...

1 describe a mixed or split-plot factorial design this

1. Describe a mixed, or split-plot, factorial design. This design is a hybrid of what two other designs? 2. What is a main effect? 3. How many main effects can be tested in a 2 x 2 design? In a 3 x 3 design? In a 2 x 2 x ...

1 the independent variable was whether the applicant

1. The independent variable was whether the applicant appeared to have a disability. 2. The dependent variables were participants' ratings of the applicant (such as ratings of how qualified the applicant was, how much th ...

A spinoff of the anti-war and civil rights movements of the

A spinoff of the anti-war and civil rights movements of the 1960s that affected women was? increased desire to return to the security of homes and families decreased political involvement. the birth of the women's libera ...

1 what advantage do experiments have over descriptive and

1. What advantage do experiments have over descriptive and correlational studies? 2. A well-designed experiment possesses what three characteristics? 3. Distinguish between qualitative and quantitative levels of an indep ...

A multiple-choice test consists of 7 questions each

A multiple-choice test consists of 7 questions. Each question has answer choices of a, b, c, and d, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that she ...

Gary is at the top of gails preference list and gail is at

Gary is at the top of Gail's preference list, and Gail is at the top of Gary's preference list. Prove that in every stable matching Gary and Gail are matched to each other.

A citys mean minimum daily temperature in february is 27

A city's mean minimum daily temperature in February is 27 degrees F. Suppose the standard deviation of the minimum temperature in February is 4 degrees F and that the distribution of minimum temperatures in February is a ...

Best ribs wishes to pay off a debt of 40000 in 7 years what

Best Ribs wishes to pay off a debt of $40,000 in 7 years. What amortization payment would they need to make each six months, at 6% interest compounded semiannually? (Use Table 12-2 from your text) $3,541.05 $3,910.63 $2, ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen