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We are supposing that the proportion of all adults who think that two children is ideal is p=0.52. What is the probability that a sample proportion falls between 0.49 and 0.55(that is, within + or - 3 percentage points of the true p) if the sample is an SRS of size n=300? Of size n=5000?
Biggio's Department Store has six employees available to assign to four departments in the store: home furnishings, china, appliances, and jewelry.
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
Determine the regression equation. Interpret the equation. Do more bidders tend to increase or decrease the amount of the winning bid?
consider the series-parallel networks depicted below. each system comprises four components. the time-to-failure for
If a study had a result of F (2, 147)= 4.56, p = 0.003, how many groups were in the study, and what was the sample size?
What is the appropriate procedure to test a significant difference in means between the two groups? Use the critical -value method.
Prove that a and b are coprime if and only if no prime numbers divides both a and b. Show that [a,m] = m if and only if a divides m
A sample of 35 workers was randomly selected from a workforce of 110 to estimate the average amount spent weekly at a canteen by each worker.the sample meam was $13 and the sample standard deviation was $3.25.
Calculate the mean and standard deviation of the sample mean based on data from 100 stores.
This linear regression model was fitted to a sample of size 50 to produce the following regression equation: yhat = 145 + 1.2x1 + 300x2.
A candy company claims that 92% of consumers like their candies. To test this claim, 9571 people are selected at random from those who have eaten the company's candies.
Two new york designs are under consideration for possible adoption in an assembly plant. A time study is conducted with 10 workers using design 1, and 12 workers using design 2. The means and standard deviation of their assembly times in minutes a..
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