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1) The 1996 GSS asked, "If the husband in a family wants children, but the wife decides that she does not want any children, is it all right for the wife to refuse to have children?" Of 708 respondents, 576 said yes.A) Find a 99% confidence interval for the population proportion who would say yes.B) Can you conclude that the population proportion exceeds 75%? Why?C) Without doing any calculation, explain whether the interval in part a) would be narrower or wider if the confidence interval level was 95% instead.
One measure of the risk or volatility of an individual stock is the standard deviation of the total return (capital appreciation plus dividends) over several periods of time. Al though the standard deviation is easy to compute, it does not tak..
1. One sample has SS=100 and a second sample has SS=124.a. If n=8 for both samples, find each of the sample variances, and calculate the pooled variance. Because the samples are the same size, you should find that the pooled variance is exactly halfw..
Calculate an appropriate measure of agreement between DHEC and the independent company - Estimate for the proportion with a fast reaction time for each sex.
Have X= 1, 4, 3, 2, 5, 6, 0. and Y= 1, 3, 3, 1, 4, 7, 2. I get the least squares equation as y=15/28+23/28x. is it correct? How do I test whether the model can be used for predicting Y? How much of the variation in T is explained by variation i..
The manager of a large maintenance department in a manufacturing setting. Discuss how the understanding of probabilities will be beneficial to you and the company. I would have expectations of more than 200 words. The content is important.
Professional presentation style
What is the probability that the experiment will find (misleadingly) that the mean score for delayed speaking is at least as large as that for early speaking?
Descriptive Statistics and Z-scores
a new program is developed to enrich thekindergarteneperience of children in prepararion doe first grade. hillmont
A person estimates that his commute to work will most likely take 50 minutes. However, it could talk as long as 1 hour and 35 minutes worst case, or as little as 35 minutes best case. What is the approximate standard deviation based on the ab..
Outline two techniques which can be used to decide where to put SPC effort most effectively and state 3 ways in which the application of SPC can improve quality standards.
Statistics from Cornell's Northeast Regional Climate Center indicate that Ithaca, NY, gets an average of 35.4" of rain each year with a standard deviation of 4.2". Assume the data is normally distributed.
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