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1. Using the random number table in Appendix A, select a simple random sample of 5 from the 50 states of the United States.
2. What is meant by periodicity, and how can this present a problem when taking a systematic sample? Provide an example of a systematic sampling situation where periodicity could be a factor.
A nursing professional conducts an analysis to examine scores on the mental health service and treatment outcome questionnaire.
The following memorandum opinion on statistical significance was issued by the judge in a trial involving many scientific issues. The opinion has been stripped of some legal jargon and has been taken out of context.
For type 1, six patients were operated on in 45,47,50,53,58, and 62 minutes. In the second type of operation it took 51, 56, 60, 63, 64, 69, and 70 minutes. Use the normal approximation.
Does the confidence interval contain the value of 35 mm, which is believed to be the standard deviation of sitting heights of women?
jan finished culinary school and wants to start her own pastry business. she has a few options and believes that a
A manufacturer of athletic footwear claims that the mean useful lifetime of his product will exceed 50 hours. A random sample of 36 pairs of shoes leads to the following sample results, in terms of useful life: x = 52.3 hours and s = 9.6 hours.
1. A survey of violence in schools is designed to estimate the percentage of male students who were threatened with violence on school grounds over the past year. the tolerable error is set at 1 percent and the level of confidence is to be 99 perc..
according to an airline a particular flight is on time 95 of the time suppose 120 flights are randomly selected
1.the weight of medium-sized oranges selected at random from a large bin of oranges at the local supermarket is a
Suppose that the conclusion from an ANOVA is that the null hypothesis is rejected, in other words that the 6 population means are not all equal. What should we expect?
Doctors often use body mass index (BMI) to measure obesity. BMI is weight/height2, where weight is measured in kilograms and height in meters.
Post a message in the Discussion area that answers the following question. Do you think the person has ESP or can their success ratio be attributed to chance variation?
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