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Critically illustrate out the properties of a normal distribution. Explain why there are an infinite number of normal distributions. Why do you want to assume that your sample data represent a population distribution?
Write a brief summary of the distribution of life expectancy.
At the .01 level of signiicance, is the true mean greater than 10?
Find the critical F value for the Following,
a) 95% of confidence intervals generated will include the sample mean X. b) 5% of the confidence intervals generated will include the true mean μ
Findout the percentage of trainees earns less than $900 a month utilizing normal distribution.What percentage of trainees earns less than $900 a month?
Assuming that students make their decisions independently, the number who accept has the B (1200, 0.75) distribution. If this number is less than 950, the college will admit students from its waiting list.
Estimate with 95% confidence the mean reduction in time it takes for someone who has taken the sleeping pill to fall asleep.
At 5% level of significance, does this sample prove violation of guideline that average patient must pay no more than $250 out of pocket?
each person received was determined by randomization. For each person who was sent one of the surveys, the researcher recorded whether or not a completed survey was returned.
Estimate the probability the store will gross over $850 a) Fewer than 5 out of 10 business days.
Describe the sampling distribution model of this mean.
Distinct random variable
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