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A national agency sets recommended daily dietary allowances for many supplements. In particular, the allowance for zinc for males over the age of 50 years is 15mg/day. The agency would like to determine if the dietary intake of zinc for active males is significantly higher than 15 mg/day. How many males would need to be included in the study if the agency wants to construct an a =.05 test with the probability of committing a Type II error to be at most .10 whenever the average zinc content is 15.3 mg/day or higher? Suppose from previous studies they estimate the standard deviation to be approximately 4 mg/day.
Use the given frequency distribution to find the Class width
Muscular dystrophy is an incurable muscle-wasting disease. The most common and serious type, called DMD, is caused by a sex-linked recessive mutation. Specifically; women can be carriers but do not get the disease; a son of a carrier has probabili..
a presidential candidate plans to begin her campaign by visiting the capitals in 4 of 47 states. what is the
A processor of carrots cuts the green top off each carrot, washes the carrots, and inserts six to a package. Twenty packages are inserted in a box for shipment. To test the weight ofthe boxes, a few were checked.
1.i have three groups for which i want to perform an anova. they have standard deviations s1 2.5 s2 3.4 s3 6.4 and
Suppose two residents participate in the program (each for 3 weeks= 21 days) and cart review inds a total of 20 medical erros made by the two residents combined. Rate = 20 errors in 21 days per 2 residents .95 error per day per 2 resdients or .4762..
Results from a January 2008 telephone survey conducted by Gallup showed that 57% of urban Colombian adults support a free trade agreement (FTA) with the United States. Gallup used a sample of 1000 urban Colombians aged 15 and older.
1. a researcher for reasons passing understanding wishes to assess the association between gender and total cholesterol
A certain medication is known to increase the pulse rate of its users. The variance of the pulse rate is known to be 10 beats per minute.
suppose x is a positive random variable with ex5.3 and standard deviation of x is 1.6 . finda e3-2xb varxc ex2d ex-22e
1. the complementary slackness principle states that either there is zero slack on a constraint or the reduced cost is
1.incomes in a certain town are strongly-right skewed with mean 36000 and standard deviation 7000. a random sample of
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