For a hypothesis test of the claim that the mean amount of sleep for adults is less than 7 hours, technology output shows that the hypothesis test has power of 0.4153 of supporting the claim that μ<7 hours of sleep when the actual population mean is 6.0 hours of sleep. Interpret this value of the power, then identify the value of ß and interpret that value. Interpret this value of the power. OA. The chance of recognizing that μ< 7 hours is not very high when in reality μ = 6.0 hours. OB. The chance of failing to recognize that μ<7 hours is not very high when in reality μ = 6.0 hours. OC. The chance of failing to recognize that μ = 6.0 hours is not very high when in reality μ = 6.0 hours. OD. The chance of recognizing that µ<7 hours is very high when in reality μ = 6.0 hours. Identify the value of B and interpret that value. Select the correct choice below and fill in the answer box to complete your choice. (Round to four decimal places as needed.) OA. The value = OB. The value = OC. The value = OD. The value = indicates that there is a less than 50% chance of incorrectly recognizing that u < 7 hours when in reality μ = 7 hours. indicates that there is a greater than 50% chance of failing to recognize that µ<7 hours when in reality μ = 6.0 hours. indicates that there is a less than 50% chance of failing to recognize that μ<7 hours when in reality µ = 6.0 hours. indicates that there is a greater than 50% chance of incorrectly recognizing that µ<7 hours when in reality μ = 7 hours. H

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The recommended dietary allowance (RDA) of iron for adult females is 18 milligrams (mg) per day. The given iron intakes (mg) were obtained for 45 random adult females. At the 10% significance level, do the data suggest that adult females are, on average, getting less than the RDA of 18 mg of iron? Assume that the population standard deviation is 4.7 mg. Preliminary data analyses indicate that applying the z-test is reasonable. (Note: x= 14.67 mg.) Click here to view the iron intake data. State the hypotheses for the one-mean z-test. Ho:H mg Ha: H (Type integers or decimals. Do not round.) mg Compute the value of the test statistic. Z= (Round to two decimal places as needed.) Determine the P-value. P = (Round to three decimal places as needed.) the null hypothesis. At the 10% significance level, the data sufficient evidence to conclude that adult females are the RDA of iron, on average.