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Use the given data to find the minimum sample size required to estimate a population or proportion or percentage.
Margin of error: 0.02 confidence level: 90% p hat q Hat n= round to nearest integer
A researcher computes the mean, the median, and the mode for a set of n = 50 responses to this question. Which of the following statements accurately describes the measures of central tendency?
Compute Cohen's d to measure effect size for both test ( standard deviation 20 and 10) If the population standard deviation is 10.
question the lifetime of a certain type of colour television picture tube is known to follow a normal distribution
if the bonferroni procedure is used to maintain an overall significance level of .05 for three comparisons the
To investigate the efficacy of a diet, a random sample of 16 male patients is drawn from a population of adult males using the diet. The weight of each individual in the sample is taken at the start of the diet and at a medical follow up 4 weeks l..
As part of this trial, they want to find out whether there is a difference between effectiveness for women and for men. At = .05, what is the test value?
Household with no children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude? (Use (alpha) = 0.10.) z = ? P-value =?
a control chart for the fraction non-conforming of muffler bearing production is maintained with a p value of 0.10 and
a researcher wants to determine if the average performance on a standardized business management test is significantly
in each of the following situations the sampling frame does not match the population resulting in undercoverage. give
in a survey of 2000 adults 50 years and older of whom 80 were retired and 20 were pre-retired the following question
What can you conclude from Chebyshev's theorem about the percentage of adults in the town whose heights are between 57.3 and 77.7 inches? Please show work.
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