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Suppose five 6 oz tubes of toothpaste are randomly selected and squeezed until no more toothpaste will come out. Then each tube is cut open and the amount remaining is weighed, resulting in the following data. 0.53, 0.65, 0.46, 0.5, 0.37. Does it appear that the true average amount left is less than 10% of the advertised contents?
A. Check the validity of any assumptions necessary for testing the appropriate hypotheses.
B. Carry out a test of the appropriate hypotheses using a significance level of 0.05. Would your conclusion change if a significance level of 0.01 had been used?
C. Describe in context type I and type II errors, and say which error might have been made in reaching a conclusion?
Could this information be viewed as representing the ratio scale of measurement? If so, explain your reasoning. If not, why not?
of three cards one is painted red on both sides one is painted black on both sides and one is painted red on one side
approximately 8.33 of men are colorblind. you survey 8 men from the population of large city and count the number who
based on our past history of winning bids on projects the probability of winning the next contract to build a school is
Is global F ratio significant? Identify this F ratio, and describe whether it is important.Is coefficient for X1 (productivity) significant? How do you know? Mention its t value and accompanying P-value.
In optimal solution, determine minimum time needed to complete project?
From Company B, 850 stereos are purchased and 6% are found to be defective. Given that a stereo is defective, find the probability that it came from Company A.
a population of 200 voters contains 78 republicans 120 democrats and 2 independents and members of other parties. a
1.incomes in a certain town are strongly-right skewed with mean 36000 and standard deviation 7000. a random sample of
the following data lists the average monthly snowfall for january in 15 cities around the us38 0 47 32 42 31 40 47 35
Use these data to test whether there are any significant differences among the three age groups. Use α = .05. SSbetween= ? T2/n - G2/N = 152/3 + 122/3 + 32/3 - 302/9
Describe ways in which the use of MS Excel as a tool for interpreting data can be used by a manager of an organization.
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