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Let X~N(1.3,2) the proportion and find the proportion
A. Prop(X<2.85)
B. Prop(X>3)
C. Prop(1.33<X<5.3)
D. Prop(X<9.1)
Five cards are drawn from an ordinary deck without replacement. Find the probability of getting:
What is the p value? Describe the steps in formal hypothesis testing. Make at least one comment for each step.
Calculate the least square estimates of the slope and intercept. What is the estimate ofσ2? Find the estimate of the mean deflection ifthe stress level can be limited to 69%.
Consider a simple random sample of n=116 people. Denote by X the number of people in the sample that have the disease. Calculate the following probabilites. P(X=23)=?
question a research firm conducted a survey to determine the mean amount smokers spend on cigarettes during a week. a
If a worker is chosen at random, what is the probability that he or she.Is very improbable to switch jobs. Is somewhat likely or very likely to switch jobs.
consider the set of odd single-digit integers 13579.a make a list of all samples of sixe 2 that can be drawn from this
3 of 20 students are selected to a committee. they will be president vice president and secretary. how many different
Suppose that 51% of the women who gave birth at a certain hospital last year were over 30 years old, and that 39% were unmarried.
Find the equation of least -squares line and plot the line on the scatter diagram of part (a)
Machine is not filling the bottles completely. A sample of 8 bottles is taken. Is there enough evidence to support the consumer's conjecture at alpha = .10?
A psychiatrist would like to determine whether a new medication has any effect on psychotic symptoms. A sample of patients is assessed and then placed on drug therapy for 2 weeks. The severity of their symptoms is assessed again at the end of the tre..
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