Confidence intervals and graphing

Assignment Help Basic Statistics

Reference no: EM1390149

A study of hours spent in training (per year) at a company was conducted with 49 participants. The mean number of hours spent in training was reported to be 89.25 hours. The standard deviation was 13.44 hours.

1. Compute a 95% confidence interval for the average time spent in training per year at this firm.

2. Develop a graph showing the data below as a frequency distribution. Note the mean and the confidence interval on the graph.

$210 220 230 240 270 300 300 320 320 320

340 370 370 380 400 410 450 450 470 470

490 500 500 510 510 540 570 580 580 640

490 500 500 510 510 540 570 580 580 610

610 620 640 640 650 660 690 750 760 790

Reference no: EM1390149

Questions Cloud

Detailed explanation to frequency distribution : For the set of data below construct a grouped frequency distribution that as well contains the real limits of each interval, midpoint of each interval, the cumulative frequency,

Progress of gene therapy : Provide your opinion as to why the progress of gene therapy has been disappointingly slow. Give several specific examples of actual failures in gene therapy trials.

Design and execution of digestion trials : Determine which well-known goat feeding strategy combined with which errors in the design and execution of digestion trials led some animal nutritionists to believe that goats

High order needs become less impotrant as indivdual move up : high order needs become less impotrant as indivdual move up the corporate ladder/5. higher-order needs become more imporant as indivuals move up the crporat ladder/which of these answer is correct/joedumb77

Confidence intervals and graphing : Compute a 95% confidence interval for the average time spent in training per year at this firm. Develop a graph showing the data below as a frequency distribution. Note the mean and the confidence interval on the graph.

Design and execution of digestion trials : Extimate which well-known goat feeding strategy combined with which errors in the design and execution of digestion trials led some animal nutritionists to believe that goats

In maslow need hieracy need must be satisied before needs : in maslow need hieracy need must be satisied before needs are activated and need must be satisfied before needs are activated and so omn

Warming of the arctic seas destroys : Suppose when warming of the Arctic seas destroys the last of the polar bears' ice flows, how will their diets change? What are a few things the new food may do to their health?

Disposal of excavated material : Discuss and use examples to explain the specific factors that you will need to consider when pricing the following items in the bill of quantities foundation excavation

User Account

All Pages