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The campaign staff legislator wants to determine whether the legislators performance rating (0-100) has increased from last year to this year. the legislature performance ratings from the same 16 randomly selected voters are recorded for last year and this year.
What is the null and alternative hypothesis?
fitting of simple linear regression equation.a researcher wishes to determine whether a persons age is related to the
How many ways can three items be selected from a group of six items? Use the letters A, B, C, D, E, and F to identify the items, and list each of the different combinations of three items.
The heights of 10 sixth graders are listed in inches: {53, 61, 54, 60, 58, 62, 55, 58, 59, 56}. Find the mean, median, mode, sample variance, and range.
Determine the probability distribution for X defined as number of defective items drawn (Hint: You have to determine P(X=0), P(X=1) and P(X=2).
A survey is giving to a group of individuals in order to better under how many hours per week they work per day and to see if this has an effect on their productivity levels. When the employees are given the survey, some decide to answer, on avera..
the frequency distribution of 100 families given below the number of families corresponding to the expenditure groups
What is the probability that a randomly selected person will be a Protestant and at the sametime be a Democrat or a Republican and what proportion of teenagers watch 16 to 18 hours of TV a week?
1. Our hypothesis test is testing to see if there is a difference in the population mean between two groups. The data for each group has considerable variability. Given that there is considerable variability in the data for the two groups ________..
Suppose that a company claims that their mean weekly sales are $12,250. A random sample 35 weeks yields a sample mean of with a sample standard deviation of s=$1250.
suppose the office is open five days per week. what is the expected number of new claims per week at this office?a. 5b.
find the critical value from table l for the rank correlation coefficient given sample size n 9 and alpha
What is the arithmetic mean glucose reading? What is the median glucose reading? What is the modal glucose reading?
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