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Question: Going to the prom Tonya wants to estimate what proportion of her school's seniors plan to attend the prom. She interviews an SRS of 50 of the 750 seniors in her school and finds that 36 plan to go to the prom
(a) Identify the population and parameter of interest.
(b) Check conditions for constructing a confidence interval for the parameter.
(c) Construct a 90% confidence interval for p. Show your method.
(d) Interpret the interval in context.
jeff bollinger of prudential realtors has 20 residential listings under contract. the following table shows the number
Bank of America recently launched a special credit card designed to reward people who pay their bills on time by allowing them to pay a lower-than-usual.
an engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between
A sample of 8 jars has a mean of 15.6 ounces and a standard deviation of 0.3 ounce. Is there enough evidence to support the consumer's conjecture at a = 0.05? First, identify the alternative and the null hypotheses.
Write a short report that includes an introduction, a conclusion paragraph and a body which answers fully the two questions posed in the problem - Comparing the preceding probabilities, which areas seem strongest and weakest in terms of the amount..
At a certain pizza parlor, 45% of the customer's order a pizza containing onions, 38% of the customer's order a pizza containing sausage, and 79% order a pizza containing onions or sausage
Assume that each of the following studies cannot be analyzed using a parametric procedure. For each of the following studies (below), indicate the appropriate nonparametric procedure, and explain why you chose it.
In the new poll, if the proportion favoring the incumbent has not changed, what is the mean and standard deviation of the number preferring the incumbent?
In a certain country the distribution of income for the whole population follows a slightly right skewed distribution. Problem five: Lila programs the computer to take one thousand random samples of size 30 from the population.
you are investigating the role of physical activity in heart disease and suggest that physical activity protects
The adjusted R 2 was 53%.19 Carefully analyze these results and try to draw a conclu- sion about the effects of the 1985 French Banking Deregulation Act.
Based upon the output, what is your educated guess as to the relationship between one's gender and his/her performance on the MCAS test?
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