a. This problem is a test on what population parameter? b. What is the null and alternative hypothesis c. What are the Significance level and Type of test d. What is the Critical Value
Hydrangea is a flower that changes its color according the the pH of the soil. The flower becomes blue when the pH of the soil is too acidic (pH below 5.5), red when the pH of the soil is too basic (pH above 6.5), and purple when the pH of the soil is exactly between 5.5 to 6.5. A landowner claims that the average pH of their soil can produce perfectly consistent purple flowers with a standard deviation pH of at most 0.5. If the standard deviation of the pH level of the soil exceeds 0.5, the flower would either become blue or red.
Use a= 0.05 to determine whether you would support the landowner about the claim or not. The table below shows the pH level of 15 soil samples collected.
a. This problem is a test on what population parameter?
b. What is the null and alternative hypothesis
c. What are the Significance level and Type of test
d. What is the Critical Value
e. What is the sample STANDARD DEVIATION
f. What is the Standard test statistic
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