After the first year just before growth starts, provide a light application of a complete bulb food containing _____
A) Limestone and phosphorous
B) Nitrogen and limestone
C) Nitrogen and phosphorous
D) None of the above
C
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The two metals used in a Type K thermocouple are:
A) Aluminum and copper. B) Copper and antimony. C) Chromel and alumel. D) Iron and steel.
Which statement about technician responsibility and pay is correct?
A. Entry-level technicians are hired to complete complex operations. B. Technicians are not required to follow environmental regulations. C. Technicians can be paid hourly rates. D. Technicians never work for flat rate.
____________________ are plants in which certain bacteria use nitrogen gas from the air and convert it to nitrate
Fill in the blank(s) with the appropriate word(s).A sociologist is interested in surveying workers in computer-related jobs to estimate the proportion of such workers who have changed jobs within the past year.
a. In the absence of preliminary data, how large a sample must be taken to ensure that a 95% confidence interval will specify the proportion to within ±0.05? b. In a sample of 100 workers, 20 of them had changed jobs within the past year. Find a 95% confidence interval for the proportion of workers who have changed jobs within the past year. c. Based on the data in part (b), estimate the sample size needed so that the 95% confidence interval will specify the proportion to within ±0.05.