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In a sample of 400 college seniors, 320 responded positively when asked if they have spring fever. Based upon this, compute a 95% confidence interval for the proportion of all college seniors who have spring fever. Then complete the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.
What is the lower limit of the 95% confidence interval? What is the upper limit of the 95% confidence interval?
in a majjor league baseball worl series two teams a and b play a sequence of games against each otherand dthe first
when 40 people used the atkins diet for one year their mean weight change was -2.1 lb based on data from comparison of
a standard deviation of 5 miles per gallon. At α=0.05, can you reject the auto maker's claim that the mean gas mileage of its luxury sedan is at least 25 miles per gallon?
cereal is sold by weight not volume. this introduces variability in the volume due to settling. as such the height to
Calculating the effectiveness of an educational intervention using a pretest-posttest design. I plan to run an ANCOVA on the scores with the pretest as the covariate. The six subcatagories on the test give the raw score of correct answers out of the ..
hamil coaches ltd say that their long-distance coaches take 5 hours for a particular journey. last week a consumer
senior management of a consulting services firm is concerned about a growing decline in the firms weekly number of
the department of transportation wants to estimate the proportion of vehicles on interstate 35 between the hours of
Each party's position must be statistically sound. Include as suitable graphs, computations, and statistical tests.
Calculate the safety stock for PVBs for each quarter. (σQ1 = 1877, σQ2 = 3361, σQ3 = 3851, σQ1 = 1877 and σQ4 = 8154). Assume the formula SS = z σtL1/2. Create a APP that minimises costs.
A person claims to be able to predict the outcome of flipping a coin. This person is correct 16/25 times. Compute the 95% confidence interval on the proportion of times this person can predict coin flips correctly.
Compute the correlation coefficient for the data. (Round your answer to 4 decimal places, the tolerance is +/-0.0001.) What is your interpretation of this value?
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