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0.29 of all college students like the idea of a new curriculum. If we select 94 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students (from 0 to 94) and the probability of each. If the answer cannot be calculated, enter zero (0) as your answer. Round to 4 decimal places otherwise. YES, you need, therefore, to look at the 5th decimal place.
The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card.
Calculate the probability that a randomly selected egg weights between 62.5 g and 68.75 g. Think of cartons of such eggs as SRSs of size 12 from the population of all eggs.
The President of the American Insurance Institute wants to compare the yearly costs of auto insurance offered by two leading companies.
Formulate the hypotheses that can be used to determine whether the mean of all account balances is significantly different from $1,150
At one Las Vegas casino, if you net $5 that a 12 will come up as the total points on two dice, and you win, you will get back $50. If any total other than 12 comes up, you get back $0.
If on the other hand, he believes that the probability that he will get offers from both companies is 0.5, what is the probability that he will get at least one offer from these two companies?
How would you choose an appropriate level of significance for your statistical test? What are the possible outcomes and limitations of your statistical test?
In a standard normal dist. what is the prob. of getting a value less than 1.63? How about between 1.13 and 1.86? How about greater than .58?
Determine the level of measurement for these items related to the newspaper business? The following data gives the weekly amounts spent on groceries for sample of households.
Is it sensible to conclude that mean weekly salary of school teachers is lower at .05 level of significance? Explain why?
Using Non-parametric test, whether there is significant difference in the motor coordination skills.
A pollster calls 500 randomly selected people and all 500 respond to her first question. Because the subjects agreed to respond, is the sample a voluntary response sample?
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