The recommended dietary allowance (RDA) of iron for adult females is 18 milligrams (mg) per day. The given iron intakes

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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 4.2 mg. Preliminary data analyses indicate that applying the z-test is reasonable. (Note: x = 14.69 mg.) Click here to view the iron intake data. Click here to view Page 1 of the table of areas under the standard normal curve. Click here to view Page 2 of the table of areas under the standard normal curve. State the hypotheses for the one-mean z-test. Нон mg H:H mg (Type integers or decimals as needed. Do not round.) Compute the value of the test statistic. GOOD (Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) OA. The critical values are t2a/2= OB. The critical value is -Za" OG. The critical value is z

Determine the critical value(s). Select the correct choice below and fill in the answer box within your choice. aces as needed.). are ±za/2" t Do not reject Reject is-Z is Z₁ = the null hypothesis. At the 10% significance level, the data the RDA of iron, on average. sufficient evidence to conclude that adult females are

(Round to two decimal places as needed.) OA. The critical values are *Zu/2" * B. The critical value is -z = 0. C. The critical value is Z₁ = Below and fill in the answer box within your choice. the null hypothesis. At the 10% significance level, the data the RDA of iron, on average. do not provide provide sufficient evidence to conclude that adult females are

(Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) OA. The critical values are 17a/2=1 B. The critical value is -Za OC. The critical value is z the null hypothesis. At the 10% significance level, the data the RDA of iron, on average. getting not getting getting less than getting more than sufficient evidence to conclude that adult females are

of the mals test s aces a ue(s).: aces a s are d lie Iron Intake (mg per day) 17.9 18.9 14.9 14.9 18.0 14.8 14.1 10.7 18.4 16.4 12.5 16.2 21.0 20.1 12.0 13.1 16.1 11.0 15.4 9.7 19.5 18.5 14.0 17.1. 11.0 16.0 12.8 14.4 12.3 12.2 18.4 13.2 11.7 10.8 17.6 12.1 17.4 6.2 16.3 12.4 14.6 12.4 15.6 11.4 16.9 Print Done - X