Calcium is the most abundant mineral in the human body and has several important functions. Most of the body calcium is stored in the bones and teeth, where it functions to support their structure. Recommendations for calcium are provided in Dietary Reference Intakes, developed by the Institute of Medicine of the National Academy of Sciences. The recommended adequate intake (RAI) for calcium for adults (ages 19-50) is 1000 mg per day. A random sample of 18 adults with incomes below the poverty level gave the following calcium intakes: 886 633 943 847 934 841 1193 820 774 834 1050 1058 1192 975 1313 872 1079 809 Assume the population standard deviation for daily calcium intake for adults with incomes below the poverty level is 188mg. At the 0.05 level of significance, does the data provided above provide evidence to suggest that the mean calcium intake of all adults with incomes below the poverty level is less than the RAI pf 1000mg per day? Step 1: Define the parameter & setup the test Step 2: State the Level of Significance Step 3: Find the value of the Test Statistics Step 4: Find P-Value OR Find Critical Value
Calcium is the most abundant mineral in the human body and has several important
the body calcium is stored in the bones and teeth, where it functions to support their structure.
Recommendations for calcium are provided in Dietary Reference Intakes, developed by the Institute of
Medicine of the National Academy of Sciences. The recommended adequate intake (RAI) for calcium for
adults (ages 19-50) is 1000 mg per day.
A random sample of 18 adults with incomes below the poverty level gave the following calcium intakes:
886 633 943 847 934 841
1193 820 774 834 1050 1058
1192 975 1313 872 1079 809
Assume the population standard deviation for daily calcium intake for adults with incomes below the
poverty level is 188mg.
At the 0.05 level of significance, does the data provided above provide evidence to suggest that the
mean calcium intake of all adults with incomes below the poverty level is less than the RAI pf 1000mg
per day?
Step 1: Define the parameter & setup the test
Step 2: State the Level of Significance
Step 3: Find the value of the Test Statistics
Step 4: Find P-Value OR Find Critical Value
Step 5: State Conclusion and why
Step by step
Solved in 3 steps with 4 images
