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1. A research company stated that 20% of missed school days are due to asthma. If a group of 400 school children are selected at random, what is the probability that at most 60 will miss school because of asthma?
2. Suppose that in one small town the average income is $34,200 with a stansard deviation of $2200. What percent of housholds between $29,800 and $38,600?
Two years ago, a survey of all Wal-Mart customers indicated that the mean number of items bought per day by male customers was 8.3 with a standard deviation of 3.7.
Compute the Kappa statistic and its standard error reading reproducibility of the diagnosis of dyspnea in this clinic.
answer the following questions by checking either true or false.a all other factors remaining the same a 90 confidence
the barrons big money poll asked 131 investment managers across the united states about their short-term investment
Using the 0.10 level of significance, is there evidence that the mean shopping time at the local supermarket is different from the claimed value of 22minutes?
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. What is the lower limit of the 90% confidence intervel? What is the upper limit of the 90% confidence interval?
How do we calculate the upper and lower limits of one sided and two sided 95% confidence level of difference in proportion when comparing two groups in clinical research.Could You kindly help with some formula for calculating these.
At 95% confidence using the p- value approach, test the hypotheses. Let α = 0.1.
For each of the following populations, would a score of X = 50 be considered a central score (near the middle of the distribution) or an extreme score (far out in the tail of the distribution)?
Nyobia had a population of 3 million in 1985. Assume that this country's population is growing continuously at a 5% annual rate and that Nyobia absorbs 40000 newcomers every year.
the volumes of soda in quart soda bottles are normally distributed with a mean of 32 oz. and a standard deviation of
a statewide real estate agency farm associates specializes in selling farm property in the state of nebraska. its
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