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For each of the following populations, would a score of X = 50 be considered a central score (near the middle of the distribution) or an extreme score (far out in the tail of the distribution)?
a) µ = 45 and σ = 10
b) µ = 40 and σ = 2
c) µ = 55 and σ = 2
d) µ = 60 and σ = 20
Findout probabilities utilizing standard normal distribution. If the debt is normally distributed with a standard deviation.
The mean noise level of stroke floors in 20 different hospitals was 63.1 dBA, and the standard deviation was 4.1 dBA. The mean noise level for 24 hospital operating rooms was 56.3 dBA and the standard deviation was 7.5 dBA. At α = .05 can it be co..
What is the appropriate conclusion based on the outcome of the hypothesis test?
Determine the calculated value of the test statistic? What distribution does test statistic have when null hypothesis is true?
What does r 2 of .73 tell us? Is this a strong or weak correlation? How can you tell?
Estimate the 95% confidence interval for the proportion of the electorate that support this policy.
What is the intercept for the logistic regression equation and What is a 95% confidence interval for the odds ratio
Let be the average of the pay you receive for the first and second week. Find the sampling distribution
A researcher discovers the number of parking tickets that a group of students have received during their driving careers. Twenty students reply and they have received between 9 and 20 parking tickets.
At the .10 significance level you will test to determine if there has been an increase in selling time. Is this a 1 or 2 tail test?
N=120, population standard deviation is (known) 5, alpha =.05, standard error of the mean (sigma of xbar)= .46, h0 is rejected if xbar
Develop a joint probability table for these data. If a student goes full time, determine the probability that school quality is first reason for selecting a school?
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