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Q1) Let following frequency distribution based on the set of sample data:
X
0
1
2
4
5
f
8
18
12
11
a) Compute the sample size?
b) Determine relative frequency of X=4?
c) Is the above " a grouped data" type?
d) Generate the cumulative frequencies.
e) Determine the mode and P50.
A noted psychic was tested for ESP. The psychic was presented with 400 cards face down and asked to determine if each card was marked with one of four symbols: a star, cross, circle, or square. The psychic was correct in 120 cases. Let p represent..
The mean of a sample is 22.5. The mean of 1000 bootstrapped samples is 22.491. The bias of the bootstrap mean is
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A major benefit of two-way ANOVA over several one-way ANOVAs, If an F test for interaction is significant.
A pediatrician is interested in studying the effect of Motrin on reducing temperature in young children. Four children with influenza have their temperatures taken immediately before and then 20 minutes after taking a standard dose
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Which of the following is the appropriate conclusion from carrying out these multiple comparisons
The conservative degrees of freedom for the t distribution are and The standard error, conservative degrees of freedom
An automobile insurance company estimates the following loss probabilities for the next year on a $25,000 sports car:
Do students tend to improve their SAT Mathematics (SAT-M) score the second time they take the test? A random sample of four students who took the test twice received the following scores
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