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The eating habits of 12 bats were examined in the article "Foraging Behavior of the Indian False vampire bat" (Biotrapica (1991):63-67). These bats consume insects and frogs. For these 12 bats, the mean time to consume a frog was 21.9 minutes and the standard deviation was 7.7 minutes.
a) Construct and interpret a 98% confidence interval for the mean suppertime of a vampire bar whose meal consist of a frong
B) What assumptions must be reasonable for the one-sample t-interval to be appropriate?
a. the probability that exactly 20 items will be scanned incorrectly from the next 5,000 items scanned b. the probability that more than 20 items will be scanned incorrectly from the next 5,000 items scanned c. the probability that the number of item..
The system of components shown in Figure below functions as long as components 1 and 2 both function or components 3 and 4 both function.
An urn contains 50 beads. The beads are identical in shape and have one of two colors: blue and orange. We would like to estimate the proportion p of blue beads. Compute the sample proportion p^ of blue beads for each of the 100 samples found in (i..
discuss type i and type ii errors in relation to a control chart. what practical implication in terms of process
A school is studying their students' test scores by grade. Explain how the characteristic "grade" could be considered either a categorical or a numerical variable.
suppose that fty-two percent of the residents of the city eugene think that arizona will defeat oregon in their next
The following information is obtained from two independent samples.
Establish a 99% Confidence interval about the difference in the proportion of the town voters and county voters who favor the proposal.
Find μW, σW, and the standardized rank sum statistic. Then give an approximate P-value using the Normal approximation with the continuity correction. What do you conclude?
Summary statistics for the data are shown in the table. Use the methodology of this chapter to compare the mean total ratings for the two groups, at a = .05.
what are sampling techniques and discuss about sampling techniques? write sources from where you have got the
The procedure accumulate-n is similar to accumulate except that it takes as its third argument a sequence of sequences, which are all assumed to have the same number of elements.
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