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Patients with moderate to severe allergic reactions were trained to focus their minds on specific locations where their allergic donot bother them, such as a beach or a ski resort. In sample of 64 patients who received this training. suppose that 47 showed reduced allergic reactions and 17 showed an increase in allergic reactions. Are these results sufficient to conclude that the self hypothesis has a significant effect.
Given that Z is standard normal randam variable. Compute the value of Z if area between –Z and Z is 0.754:
The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart.
A scientist examined the effect of temperature and catalyst on the yield of a reaction. He ran the experiment at both 150° and 200°C with two types of catalyst.
Carry out a test of hypothesis on each of regression coefficients. Could you delete any of the variables?
Ten people agree to take part in an experiment designed to determine whether a persons weight differs between morning & evening.
With the exponential function e^x and logarithmic function log x how do I graphically show the effect if x is doubled?
The scores of college-bound senior men on the math part of the SAT followed a normal distribution with mean 527 and standard deviation 116.
A reasearcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to test the claim that the treatment population mean is smaller than the control po..
h-p is said to be the leading seller of pc's in the U.S WITH 27% share of the pc market. if a researcher selects 130 recent pc purchases
Suppose that during a basketball practice. Joe tries 3 shots from the free throw line; imagine further that he has a probability equal to 0.6 of making each shot and that the attempts are independent. Let 'X' be the number of baskets he makes in t..
Find out whether quality of items produced appears to be independent of production process used. Compute expected number of defective units produced by Process 1.
If the total of the accounts receivable is only $1,000,000 (but the standard deviation was correct), what is the probability the total of the sample would be less than $9,900.
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