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The __________ blocks the apoplastic flow of water from the root hairs to the xylem.

Results from the 2014 National Health Interview Survey demonstrated that 16.8% of adults over the age of 18 smoked cigarettes (95% confidence interval = 16.1% – 17.5%). Using 2015 data, it was observed that 15.1% of adults over the age of 18 smoked cigarettes (95% confidence interval = 14.5% – 15.7%). Given these results, which of the following statements is accurate?

In the introduction of a journal article, it is important to describe all of the following EXCEPT:

The best way to paraphrase text from another source is to:

Select the reference example that is correctly formatted in APA style:

A measure can be valid even if it is not reliable. 

A Pearson’s correlation coefficient of 0.9 represents:

It is OK to present new results in the discussion section of a scientific paper if they didn’t seem to fit anywhere earlier in the paper.

Find the critical value, z, that corresponds to a 95% confidence level.

Responses to a survey question are broken down according to employment status and the sample results are given below. Calculate the expected frequencies, Er,c. _______ _______ _______ _______ _______ _______