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Studies have shown that low vitamin D is associated with impaired fertility, endometriosis, and polycystic ovary syndrome. Vitamin D regulates the antimullerian hormone (AMH), follicle-stimulating hormone, mRNA, and expression of genes in reproductive tissues, implicating a role in female reproduction. Lata et al. conducted a prospective study to compare AMH levels in infertile and fertile females with vitamin D deficiency. Among the 35 infertile females (group 1), the mean AMH level was 1.94 with standard deviation 1.30. Among the 35 fertile females (group 2), the mean AMH level was 3.47 with standard deviation 2.59. Assuming that the population variances are unequal, you need to test the claim that infertile females have lower AMH levels than fertile females using a 0.05 significance level. To do so, answer each of the following questions.
What is the null hypothesis?
What is the alternative hypothesis?
What is the value of the test statistic you should use to test the given hypothesis?
What type of relationship is proposed?- Graph the proposed relationship.- Identify the independent variable and the dependent variable in the statement of the hypothesis.
These data represent the number of students attending a high school. Draw a line graph for the data.
What standard deviation (within 0.001 inch) minimizes the annual cost of producing elevator rails? You do not need to try standard deviations in excess of 0.02 inch
descent inc. produces a variety of climbing and mountaineering equipment. one of its products is a traditional
a. How many of the employees would you expect to have voted for President Bush? b. All of the employees indicated that they voted in the 2004 presidential election. Determine the probability of this assuming they followed the national trend. c. Ei..
If the reporter were to subject the president's statement to statistical scrutiny by questioning a sample of the company's residential customers, would the test be one-tail or two-tail? What would be the appropriate null and alternative hypotheses..
Suppose you want to test the claim the the paired sample data given below come from a population for which the mean difference is ud=0. The mean value of the differences for the paired sample data.
30 said that they planned to work in a rural community. Find a 95% confidence interval for the true proportion of all medical students who plan to work in a rural community.
Findout the consumption level separating the bottom 45% to the top 55%. The September energy consumption levels for single family homes are found to the normally distributed with a mean
Let X = duration of Old Faithful geyser (in seconds), and let Y = time (in minutes) until next eruption Is there a relationship between X and Y ? What is P (a
Statistical Hypothesis test for the given sample
What are the maximum and the minimum values in the entire set of data? List the actual values in the fourth row. List the actual values in the next to the last row.
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