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Twenty grocery stores will participate in an experiment to compare the effectiveness of two methods for displaying a product. The response variable will be the number of items of the product sold during a 1-week period.
a. Describe a completely randomized design for this experiment.
b. Describe a matched-pairs design for this experiment.
Compute F and perform the appropriate F test. Use α = .05. (to 2 decimals). Perform a t test for the significance of β1. Use α = .05. t test statistic = (to 2 decimals)
For each of the following research questions does the situation or research question involve independent samples or paired data
a. Is there evidence the mean amount is different from 1.0 gallon (alpha= 0.01)? b. Compute the p-value and interpret its meaning. c. construct a 99% confidence interval estimate of the population mean amount of paint.
question suppose that y1 and y2 are random variables from population with mean micro and variance sigma2. suppose we
Suppose we flip a fair coin repeatedly. Let Xi equal 1 if flip i was heads (H) and 0 otherwise. Let N denote the number of flips needed until H has occurred 100 times.
How are air cargo rates calculated? Calculate the cost of international air transportation for the following shipment: 200 cartons of fine jewelry weighing a total of 2,500 pounds. The carton dimensions are 18 in by 12 in by 12 in (L × W × H). The..
in a university a about 52 of all students are male and 48 are female. we know 20 of male students and 5 of female
use a significance level of a0.05 to test the claim that p1p2. use the given sample sizes and numbers of successes to
Assignment on the Motivation
a two-stage clinical trial is planned for for testing h0 p0.10 versus ha pgt0.10 where p is the proportion of
a researcher estimates the 95 ci for a sample with a mean of m 3.26 and a standard error ?m of 0.91. what is the upper
which of the following methods could lead to stronger evidence for the outcome of a nonparametric test?a. ensure that
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