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(1) Provide the goal of the study and clearly state the research hypothesis by describing the variables.
(2) Describe the results noting the direction (e.g., higher or lower; increase or decrease; etc.) and difference between sample mean (M = ?; 95% CI = ?) and the population mean (µ = ?).
(3) Report and interpret the 95% CI around the difference between the two means (e.g., does the CI contain 0 or not-how do you interpret the Ho if it does or does not include 0?). Also, be sure to report and interpret the effect size (d= ?).
(4) Report the inferential statistic used to compute the p-value (Z [ n = ?] = observed value, p < or > α) and state if the results are significant or not.
1. A research team happens to know that male rats administered a placebo drug will spend μ = 5 minutes per hour grooming (σ = 6). They believe that male rats administered a low dose of the street drug ecstasy will spend less than 5 minutes per hour grooming. They chose 100 male rats, administered a low dose of ecstasy to each, and measured the number of minutes per hour each rat spent grooming. The mean of this sample was M = 4. The research question the researcher want to answer is: does administering a low dose of ecstasy affect the time spent grooming
A researcher tested whether time of day could predict mood in a sample of 14 college students. If 55 residual = 108, then what is the standard error.
Suppose that when a process is in control each item will be defective with prob- ability .04. Suppose that your control chart calls for taking daily samples of size 500. What is the probability that, if the probability of a defective item should..
In talking about cultural and environmental blocks, we discussed the matter of a woman bringing an infant into the workplace and the possible reactions of others. Consider the situation in which a classmate wants to bring her child to school in or..
What is the probability that the advertisement will be reviewed in less than 14 days - What is the probability that both will take more than 30 days for review
in the instructors answer book for a mathematics text 8 of the answers are incorrect. use the poisson approximation to
actions to improve the repair time of equipment used to produce electronic components were taken two years ago. the
Using these data, construct a 99% confidence interval to estimate the average number of days and excavator is rented to a client, and assume the number of days per rental is normally distributed in the population.
Larry Jacava is considering producing a novelty item for golfers that will be sold through pro shops. Larry has decided on a selling price of $3.50 for the item. The item's variable cost of production is $2.00 per unit with a fixed cost of $3,750.
Find the mean and variance of the binomial, Poisson, uniform, exponential, and standard normal distributions.
1. What is a business plan, for whom is it prepared, and why? 2. What should a complete business plan include?
In the proof of Theorem 2 we determined the quantity E[X(X - 1)], called the second factorial moment. In general, the rth factorial moment of X is given by
Show that if S has more than one point, a separated uniformity never converges as a filter for its product topology.
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