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You are testing a null hypothesis that there is no linear relationship between two X and Y. From your sample of n=20, you determine that SSR=60 and SSE=40
For each set of data, calculate mean, median, mode, range, interquartile range, standard deviation, and coefficient of variation.
Point out your final decision concerning hypothesis test and compute p-value for test.
131 are enrolled in both economics and mathematics course. Determine the probability that freshman selected at random from group is enrolled in each of the following?
Determine the distribution of X? Determine its parameters?
According to a hospital administrator, historical records over the past 10 years have shown that 20 percent of major surgery patients are dissatisfied with after-surgery care in the hospital. A scientific poll based on 400 hospital patients has ju..
Discuss why the standard error for the distribution of sample means is smaller than the standard deviation of sample scores. Distinguish between within-group designs and between-group designs.
Determine pearsons correlation coefficient and comment on the value obtained. Obtain a regression equation representing the above data. Estimate the production batch size for a direct labour cost of R350-00.
A researcher want to estimate the mean shoulder height of both male and female bears within 0.25 centimeters. Determine the minimum sample size required to construct a 99% confident interval
The director of a radio broadcasting company wants to determine whether the mean length of commercials on his station is equal to 24 seconds.
Show the complete ANOVA table for this test including the test statistic. The null hypothesis is to be tested at 95% confidence. Determine the critical value for this test. What do you conclude?
Compute average daily rainfall in the week and for weekends. Get the average of weekdays' rainfalls and average of weekend's rainfalls.
Assume R is commutative ring. Prove that the following are equivalent: Here N(R) denotes the nilradical of R. The set of nilpotent elements form an ideal called the nilradical of R
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