What proportion of the 8th graders have conventional cell

Assignment Help Basic Statistics
Reference no: EM131954183

The following data was collected in a survey of 8th graders and summarize their cell phone status.

No Cell Phone Conventional Cell Phone user Smart Phone user Total

Boys 55 65 35 155

Girls 31 78 27 136

Total 86 143 62 291

What proportion of the 8th graders have conventional cell phones?

Reference no: EM131954183

Questions Cloud

Develop an environmental analysis : Develop an environmental analysis that includes competitive, economic, political, legal, technological, and sociocultural forces.
Find the area under the standard normal curves : 1.) Find the area under the standard normal curves z=1.25
Examine a highly competitive industry using five forces : Examine a highly competitive industry (airlines, video games, fast food, soft drinks, your own field etc.) using Five Forces. Is this an attractive industry?
Perform a total abdominal hysterectomy : She was cut with a piece of glass during a physical altercation with her husband. The physician performs a detailed history and examination.
What proportion of the 8th graders have conventional cell : The following data was collected in a survey of 8th graders and summarize their cell phone status.
Who is responsible for assessing property values : Who is responsible for assessing property values? How often are assessments redone? What assessment ratio is used? What property tax relief does Ohio provide?
Assemble a marketing strategy for your product : Assemble a marketing strategy for your product, and determine an appropriate time table to implement your plan. Provide a rationale for your response.
Margin of error use t-value from appendix table : This is the case when population standard deviation is unknown. For Margin of Error use t-value from Appendix Table for t-Distribution.
What is the expected return of portfolio : What are the portfolio weights of the three stocks in your portfolio? What is the expected return of your portfolio?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Consider a data set in which all observations are equal

consider a data set in which all observations are equal. find the range variance and standard deviation for this data

  Compute the mean and median and variance cognitive

A cognitive psychologist measures the reaction times of 6 subjects to emotionally laden words.- Compute the Mean, Median, Mode, Range, Standard deviation, and Variance cognitive.

  One-sided lower confidence limit

Based on the information in (a), find a one-sided lower 90% confidence limit for m. Also, find a one-sided upper 90% confidence limit for m.

  The social services safety net is fraying

The Social Services Safety Net Is Fraying" reported in March 2005 on the growing problem of waiting lists for mental retardation services in a certain state

  What is the probability of either a or b occurring

The probabilities of the events A and B are .20 and .30, respectively. The probability that both A and B occur is .15.

  Proc logistic in sas reports aic values

Refer to the previous exercise. PROC LOGISTIC in SAS reports AIC values of 642.1 for the model with the four main effects and the six interaction terms, 637.5 for the model with only the four binary main effect terms, 644.0 for the model with only..

  Calculate estimated r squared-percentage of variance

Use a one-tailed hypothesis test with an alpha level of .01 to demonstrate. Calculate the estimated r squared, the percentage of variance accounted for, to measure the size of this effect.

  Find the indicated quantities given that x is a normal

find the indicated quantities given that x is a normal random variable with a mean of 30 and a standard deviation of

  Evidence to suggest the proportion of children with asthma

Is there any evidence to suggest that the proportion of children with asthma who are exposed to second-hand smoke is greater than the proportion for children without asthma? Use a = 0.01.

  What is p(1) that is the probability if exactly one black

A die has half of the faces red and the other half black. The die is rolled 3 times. Let the random variable X represent the number of black outcomes out of three rolls. What is P(1) that is the probability if exactly one black outcome out of three r..

  Use the bootstrap to give confidence interval for estimate

Based on given exercise and the previous two, which of the three ways of thinking is most effective for communicating the results? Give reasons for your answer.

  Find a length t of time such that the probability

Consider a radar set of a type whose failure law is exponential. If radar sets of this type have a failure rate ? = 1 set/WOO hours, find a length T of time

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