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A researcher wishes to conduct a study on the self-esteem levels of adolescents. She believes that male adolescents have higher self-esteem than female adolescents. Self-esteem test were administered to 50 randomly selected male and 50 female adolescents. (The maximum score possible was a 10.)
Males
1
3
6
5
10
8
9
2
7
4
Females
Do the results indicate that self-esteem is significantly higher on average for males at significance level of 0.01?
the population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a
Given the following situation, how would you use Megastat to test whether the population defective rate is greater than 5%? Please outline the process for the test and, if necessary, including the output from Megastat to explain your approach.
computing probability values using normal distribution.in a population of test scores not known to be normally
Computing the mean and standard deviation for the given data - Find the value for the new standard deviation
question assume that charlotte has two stocks disney d and amazon a. for each of these stocks the possible percent
Find the critical value for a right-tailed F-test when alpha=.05 the degrees of freedom for the numerator (d.f.N.) are 15, and the degrees of freedom for the denominator (d.f.N.) are 21.
A 1-hour flight is .02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the other will fail? Show all steps carefully.
An investigator wants to test if there is a difference in endotoxin levels in children who are exposed to endotoxin as a function of their proximity to operating farms.
It was reported that approximately 45% of all university professors are extroverted. Suppose you have classes with 6 different professors.
Suppose the number of tickets written per day follows a Poisson distribution with a mean of 6.5 tickets per day. Interpret the value of the mean. The mean has no interpretation since 0.5 ticket can never be written.
Provide examples of a different data collection method and a data collection instrument used in managerial research. Why is it important to ensure that these data collection methods and instruments are both reliable and valid?
Let X be the number of calls you need to make until you find your friend. Give the probability mass function for X. How many calls do you expect to make until you find your friend?
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