1.171 How much vitamin C do women consume?To evaluate whether or not the intake of a vitamin or min-eral is adequate, comparisons are made between the intakedistribution and the requirement distribution. Here is someinformation about the distribution of vitamin C intake, inmilligrams per day, for women aged 19 to 30 years:4⁹Percentile (mg/d)Mean 1st 5th 19th25th50th 75th 90th 95th 99th84.1 31 42 48 61 79 102 126 142 179(a) Use the 5th, the 50th, and the 95th percentiles of thisdistribution to estimate the mean and standard deviationof this distribution assuming that the distribution isNormal. Explain your method for doing this.

The 5th, the 50th and the 95th percentiles of the distribution are 42, 79 and 142, respectively.

Answered: 1.171 How much vitamin C do women…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Determine the level of measurement for the following variables. a. Sex b. Number of hours watching TV c. Course Title d. TV show rating (1-100%)
130 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 0.1077 14 13 0.1 27 13 40 3 15 0.1154 55 4 19 0.1462 74 5. 21 0.1615 6. 13 0.1 108 22 0.1692 130 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 2 times per week? Submit Question
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6. Setup: JP was curious about the sodium content of organic cornflakes. To investigate this, twenty 300-gram boxes of organic cornflakes were obtained and the sodium content was measured. The data (in milligrams) are as follows: 131.1, 130.7, 130.9, 129.5, 129.6, 128.8, 130.7, 128.3, 128.2, 129.7, 130.1, 129.3, 128.7, 129.0, 129.4, 130.4, 129.5, 130.1, 129.8, 130.0 Task: Perform a hypothesis test using R to determine if you can support a claim that the mean sodium content of this brand of cornflakes differs from 130 milligrams? Use a = 0.08 to make your decision. R Output: Upon running your analysis in R, you obtain the following results: One Sample t-test data: corn = 0.1121 t = -1.6659, df = alternative hypothesis: true mean is not equal to 130 19, р-value 92 percent confidence interval: 129.3458 130.0342 sample estimates: mean of x 129.69 Questions: (a) State the hypotheses used in performing this test. (b) Using the output above, state the decision (Reject or Not Reject Ho) of the…
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