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Suppose that 14 individuals take a two-day course that is supposed to improve their knowledge of Web page design, which is rated as "not proficient," "proficient," or "advanced proficient." Of the 14 individuals in the sample, 12 are rated higher after the course than before, 1 individual is rated lower, and 1 individual's assessment is unchanged. Using a significance level of 0.05, can we conclude from this information that the course is successful in improving individuals' knowledge of Web page design?
Which is the estimated or dear proportion of defective cups in the population?
Assume that the following four examines were tested as part of a large group that had a normally curved distribution.
Assume that the smiling time of eight-week old babies, in seconds, follows a uniform distribution between 0 and 23 seconds, inclusive. This means that any smiling time from 0 to and including 23 seconds is equally likely.
Determining probability values using the Binomial distribution.Use the Binomial distribution to determine the probability that four or more of the contracts are in breach of the tendering guidelines.
In the design of the robot to insert the small cylindrical part into a close-fitting circular hole, the robot arm must exert a 90-n force p on the part parallel to the axis of the hole as shown. Determine the components of the force which the part..
An ANOVA procedure is used for data that was obtained from four sample groups each comprised of five observations. The degrees of freedom for the critical value of F are:
There is no proof the new policy is more effective, but we cannot finish the policy has no effect on smog. Interpretation of P-value for the given context.
The 90% confidence interval to estimate the true average difference in nationwide sales quantity before the ad campaign and after is (0.39, 16.64). Which of the following is the appropriate conclusion? The differences were calculated as (after ad ..
Draw a scatter diagram of the following bivariate data.
Using the letter M for male and F forfemale. Define a second sample space S and where the elements represent the number of females selected.
At.01 level of significance, is proportion of seeds which germinate dependent on seed type?
Use this information to construct a probability table, and then calculate each of the following probabilities: P(foreign car)
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