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When evaluating the teaching effectiveness of instructors in an academic department of public health, the average test scores obtained by students in their 15 biostatistics classes was recorded to be 78 with a standard error of 2.5. The national average for similar biostatistics courses is known to be 70. Based on this information, can you conclude that instructors in this specific department of public health perform score better than the national average. Justify your conclusion with statistical reasoning by conducting an appropriate test of hypothesis
Research hypothesis:
H1: H0:
Test statistic:
p-value (compare with alpha = .05):
Conclusion in terms of the problem:
A single observation of a random variable having a uniform density with α = 0 is used to test the null hypothesis β = β0 against the alternative hypothesis β = β0 + 2.
Asian Americans and Pacific Islanders belong to a single Asian American culture, what do you say to them to convince them both statements are misconceptions?
What does it mean if I have a standard error of estimate figure as 25.571?
Describe the design of a controlled experiment to determine whether aspirin or Coumadin works better in preventing second strokes.
if we know that the length of time it takes an mba student to find a parking spot near the depaul center follows a
Guessing what box. Consider a game as in Examples 1 and 2, where 1 pick one of the three boxes, then you guess which box 1 picked after seeing
Consider the study we used as an example for a twoway between-groups ANOVA. Older and younger people were randomly assigned to hear either one repetition.
For each percent quoted, give the margin of error. You should express these in percents, as given in the quotation.- Rewrite the paragraph more concisely and include the margins of error.
Refer to data given in Exercise on the total 2008 payroll and the number of runs scored during the 2008 season by each of the American League baseball teams.
Standard deviation 13. in a random sample of 32 womrn aged 18-24, find the probability that the average systolic blood pressure is between 110 and 120 mm hg.
(a) Is there sufficient evidence to refute the theory? (a = 0.10)
In the television program "Big Sisters," 12 candidates remain. The public chooses four candidates for the final round.
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