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If a person were to guess a number from 1-10, the chance of guessing a 4 would be 0.1. If 5 people were asked to guess a number from 1-10, the chance of guessing a 4 would be 0.5. The chance of 2 people guessing a 4 would be (0.1)(01.)=(0.01), correct? Shouldn't the total number of people also be accounted for? That is what is the chance of 2 people guessing a 4 out of 8 people? or 2 people guessing a 4 out of 20 people guessing? What about the chance of 3 people guessing 4 out of 50 people guessing? Is there a formula for this?
A financier whose specialty is investing in comedy shows has observed that, in general, shows with "big- name" stars seem to generate more revenue than those shows whose stars are less well known.
If another sample of 1000 companies is taken, do you expect the sample mean to be 7.2 again? Why or why not? Repeating this experiment many times with different samples.
The distribution of meansdistribution and the distribution of means, showing the t score and cutoff points for significance. (c) Explain your answer to someone who has never taken a course in statistics.
Sample of six car washes averaged $5.70 and had the sample standard deviation of $1.30. Suppose the normal population, use critical value method to test claim at a= 0.05.
Household expenditure for long distance telephone service in City A and average monthly expenditure in City B extends from X to Y, determine the value of X?
Find the probability that a women develops breast cancer given that she has a family history of breast cancer._____________
Suppose the random variable X is normally distributed with mean =50 and standard deviation =7 calculate P(X).
If one employee is randomly selected, find the decimal probability (four decimal places) that his/her commute takes the following amount of time.
If a random sample of 5 observations from one population results in a standard deviation of 12 and the other random sample of 7 observations results in a standard deviation of 7.
Standardized scores offers a way of comparing norm-referenced scores. The z-score distribution is based on knowing how many standard deviations away from the mean a certain score is.
The margin of error in the poll was reported as 6 percentage points (with a 95% degree of confidence). Which statement is correct?
Interpret the following table showing the percentage of individuals on a low-fat or low-cholesterol diet by gender and age.
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