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The business manager of a large corporation wanted to determine whether there was a difference between what salesmen spend on lunch and what executives spend on lunch. A sample of 8 salesmen indicated that they spent an average of $10.77 with a sample standard deviation of 0.24 on lunch. A sample of 10 executives indicated that they spent an average of $11.30 with a sample standard deviation of 0.56 on lunch. Let = 0.05. What are the critical values?
question 1 give illustrations of primary secondary and tertiary prevention that will be used to reduce the damage
Examine the relationship between Traced by MedicalAid. Is there evidence that whether or not a child was traced is independent of whether the mother had medical aid
a study was conducted to determine the impact of social media use on student learning. a total of 103 students taking a
Create the second data set by inserting eight data points all very close to 10 on the number line and record the standard deviation of this data set, and then delete that data set.
Calculate the correlation between pretest and posttest scores separately for each gruop and determine sperately for each group whether performance improved from pretest to posttest
What can we say about the shape of the distribution of the sample mean?
single sample hypothesis testing z-tests1. for the population at large test scores on the wechsler intelligence scale
Perform a factor analysis on the three variables shown in question 2 above. What do conclude about the factors? Perform another factor analysis that includes the new variable, change in external events. What do you conclude?
problem1 1. using if filter the data for these students into a column which contains the heights of only female
Analyze the processed data in Statistical survey.
1. introductionexplain the purpose of the study.ii. summary of data collectionidentify sample population sampling frame
Perspective about the problem you are trying to analyze; in other words, you should review the literature concerning your subject. The library or the web will be a good source of information.
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