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Several psychology students are unprepared for a surprise? true/false test with 17 ?questions, and all of their answers are guesses.
a. Find the mean and standard deviation for the number of correct answers for such students.
b. Would it be unusual for a student to pass by guessing? (which requires getting at least 12correct? answers)? Why or why? not?
Design a contingency table that will hold your data. What are your degrees of freedom and critical value at a 0.05 confidence level? You do not need data to answer this.
Check the assumptions and conditions for inference.- Write a 95% confidence interval.- Explain what your interval means in this context.
What is the present value of an annuity in which $200 is paid each year for 10 years, assuming a discount rate of 6% and the first payment is received one year
use the binomial probability distribution when your random variable is the number of successes on n success or failure
T-scores are used on some psychological tests, such as the MMPI. T-scores have a mean of 50 and a standard deviation of 10, and therefore a z-score of -1 (one standard deviation below the mean) would be converted to a T-score of 40. What is George..
The probability of an offender having a speeding ticket is 35%, having a parking ticket is 44%, having both is 12%. What is the probability of an offender having either a speeding ticket or a parking ticket or both?
six applications for admission to a local university are checked and it is determined whether each applicant is male
If he is a 1 to 2 favorite to win the Belmont Stakes as well, what is his probability of winning the Triple Crown? What do his chances for the Preakness Stakes have to be in order for him to be "even money" to earn the Triple Crown?
What is the probability that the investment property selected is worth less than $400,000 and what is the probability that the investment property selected is worth between $450,000 and $600,000?
Find the marginal distribution of blood pressure level.- Find the conditional distribution of blood pressure level within each age group.
Fully charge a 0.330 mF and a 0.650 mF capacitor when they are placed in parallel? How much charge flowed from the battery when the capacitors are placed in series?
Pprobability is no greater than 1% that the day's supply is exhausted. How many pounds of ground beef should the manager have available for use each day?
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