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You can win $100 if you succeed in any one of the following: 1) draw a spade from a fresh deck of cards; 2) draw a heart from a fresh deck of cards; or 3) flip a fair coin and it comes up tails.
Ran parts and found 1% defective(1 out of 100). Made a change to the process and want to rerun parts. How many parts do we need to check (and find 0% defective) for a 90% confidence factor
I am conducting a ring test where 6 laboratories were asked to measure protein levels in the same flour sample. I then calculated the z score for each of their results
What score would Sandra need to beat 91 percent of her mathematics class? The mean score was 73, and the standard deviation was 12.
I have two samples, one is 31.2% and one is 22.6%. I am trying to calculate the 95% confidence interval in context of this situation. ALso i need the formula that is used to calculate the interval and
In a council election, 5 people are running, 3 seats available, and you want two for sure to win,but no caring who the third is. Should you only vote for the two candidates that you want and leave the
Which statistic technique can use.. when apply three treatment(treatment 1, treatment2, treatment3)on 2 dependent variable?(i applied 3 treatments consecutively and checked effect of them on 2 depende
What is the value of 1sigma 2sigma 3sigma 4sigma 5sigma 6sigma
You are interested in whether men participate more than women in political activities, so you survey 632 men and 675 women and ask them how many political events they attended within the past year. He
Calculate trial control limits for the two charts and on the assumption that the R chart is in control, estimate the process standard deviation.
What is the value of z score required for a 70% confidence interval?
Exploitron, Inc. conducts a random survey of 700 of their workers and finds that the average employee earns $31,782 per year, with a standard deviation of $622. The Census reports that the average Ame
A random sample of 25 households finds that an average of 2.3 people reside in each house (the standard deviation is 0.35). With a 95% confidence level, what is your estimation of the population avera
If 350 respondents out of a random sample of 1,000 Americans reported that they did not trust their government, what is your estimation at a 99% confidence level of the proportion of the American popu
Could you please tell in what situation the maentl hanszel test is more appropriate than using chi square. I believe maentl hanszel is used when a confounding variable is present thus allowing for adj
You survey a sample of 10 college students to measure their racial prejudice using a scale of 0 (no prejudice) to 100 (extreme prejudice). Here are the scores you obtained.
When we have several criteria with different scale, for ranking can we add values after standardization? for exaample for ranking websites we have number of visitors and page load time and size and.
Can anyone explain? Age so individuals in a certain population are normally distributed with a mean of 55 and standard deviation of 10 years. What age reange would make up the youngest 5% of the popul
What is the differences among a proportion, a percentage, and a ratio? How does a non-parametric business scenario differ from a parametric business scenario?
When testing two populations with small sample sizes, do both sample sizes have to be identical? Why or why not?
When would you use a hypothesis test for the difference in two population proportions at your place of employment?
What statistics test should I be using when I am assessing whether subjects were able to complete a task (i.e. Yes/No nominal data) before instructions, after instructions and then again after a demo
Is is possible to modify a semantic differential scale into a 10-point scale? If so, should the data be treated as ordinal or interval?
Calculate all the first and second order inclusion probabilities and find the value of E[n(a)] in two ways
What is the significance of the picture at the top of the t-table? What is the difference between a sample parameter (X-bar and s) and a proportion parameter (n)?