Subset of communication
Which is more appropriate-to view language as a subset of communication or to view communication as a subset of language?
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.A statistic practitioner randomly sampled 1,500 observations and found = 14 and s = 22. Test to determine whether there is enough evidence at the 5% significance level to infer that the population mean is less than 15.
Researchers who study the possible causes of gender identity disorder have noted that many girls who exhibit "tomboyish" behavior were exposed to __________ during fetal development.
.A random sample of 50 was drawn from a population. The sample mean and standard deviation are = 530 and s = 125. Estimate μ with 95% confidence.
Mall security estimates that the average daily per-store theft is exactly $200, but wants to determine the accuracy of this statistic. The company researcher takes a sample of 81 clerks and finds that =$180 and s = $40.
If an executive submits an expense of $720 for a one-day stay in Moscow, should this expense be considered unusually high? Why or why not?
The sample mean was calculated as = 5,064 hours. If we assume that the lifetime of this type of bulb has a standard deviation of 400 hours, can we conclude at the 5% significant level that the claim is true?
A college wants to know the lower limit of a two-sided 95% confidence interval for SAT scores on the Math section (range equals 200 to 800). They sampled 400 students and found that the sample mean was 550 and the sample standard deviation was 80.
Before each of his chemotherapy sessions, Allen is given a bowl of ice cream. The chemotherapy makes Allen nauseated. Now just seeing the bowl of ice cream makes him feel queasy. The chemotherapy is:
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