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34. Ordinarily, when a company recruits a technical staff member, about 25% of the applicants are qualified. However, based on the information in 120 recently
34. Ordinarily, when a company recruits a technical staff member, about 25% of the applicants are qualified. However, based on the information in 120 recently received resumes, 18 appear to be technically qualified. Using the 5% significance level, what conclusion should be made to claim that the proportion of qualified applicants is less than 25%? | |||||||||||
A. Reject the null hypothesis. There is not sufficient evidence to suggest that less than 25% of applicants are qualified. | |||||||||||
B. Reject the null hypothesis. There is sufficient evidence to suggest that less than 25% of applicants are qualified. | |||||||||||
C. Fail to reject the null hypothesis. There is not sufficient evidence to suggest that less than 25% of applicants are qualified. | |||||||||||
D. Fail to reject the null hypothesis. There is sufficient evidence to suggest that more than 25% of applicants are qualified. | |||||||||||
35. Suppose for a particular hypothesis test, = 0.01 and the P-value = 0.05. Which of the following statements isFALSE? | |||||||||||
A. We reject the null hypothesis. | |||||||||||
B. We fail to reject the null hypothesis. | |||||||||||
C. The observed sample result is considered "usual." | |||||||||||
D. The computed test statistic, z, does not fall in the shaded critical region of the tail of the sampling distribution. | |||||||||||
36. Nationwide, hailstones cause about $1 billion in property and crop damage each year, according to USA Today Weather Focus Report. The speed (in miles per hour) of a thunderstorm's updraft (x) is one of the factors affecting the size (diameter in inches) of a hailstone (y). Based on data collected from 4 storms, research produces a linear correlation coefficient r = 0.9906 and a regression equation of Predict the size of a hailstone if the wind is 75 mph. | |||||||||||
A. 0.9906 | |||||||||||
B. 1.0333 | |||||||||||
C. 2.889 | |||||||||||
D. 1.3179 | |||||||||||
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