The Centers for Disease Control and Prevention (CDC) is required by law to publish a report on assisted reproductive technology (ART). ART includes all fertility treatments in which both the egg and the sperm are used. These procedures generally involve removing eggs from a woman's ovaries, combining them with sperm in the laboratory, and returning them to the woman's body or giving them to another woman.

. Dr. Cooky, the head of the Food Administration, encourages Filipinos to monitor their calorie intake and aim for 500 calories a meal only; so that internationally approved minimum daily requirements will be achieved. He then wants to specifically test whether women who always order fast food meals can achieve this so that their daily calorie intakes would be 1,500 on average. A survey was done to monitor the calorie intake of 1,200 randomly selected women who always order fast food meals. Part of the analysis done resulted in a 95% confidence interval for the true mean calorie intake of women who always order fast food meals of [1791.51,1808.49]. The statistic of interest in symbols is .In words, it is the daily calorie intake of 1,200 randomly selected women who always order fast food meals. Based on the result, if the sampling process of randomly selecting 1,200 target samples is repeated a large number of times, 95% of the constructed intervals would contain the true average daily…

The report Controlling Road Rage: A Literature Review and Pilot Study was prepared for the AAA Foundation for Traffic Safety by D. Rathbone and J. Huckabee. The authors discussed the results of a literature review and pilot study on how to prevent aggressive driving and road rage. Road rage is defined as “… an incident in which an angry or impatient motorist or passenger intentionally injures or kills another motorist, passenger, or pedestrian, or attempts or threatens to injure or kill another motorist, passenger, or pedestrian.” One aspect of the study was to investigate road rage as a function of the day of the week. The following table provides a frequency distribution for the days on which 69 road-rage incidents occurred. Day  Frequency Sunday 5 Monday 5 Tuesday 11 Wednesday 12 Thursday 11 Friday 18 Saturday 7                 At the 5% significance level, do the data provide sufficient evidence to conclude that road-rage incidents are more likely to occur on…

Pharmaceutical companies spend billions of dollars per year on research and development of new drugs. The pharmaceutical company must subject each new drug to lengthy and involved testing before receiving the necessary permission from the Food and Drug Administration (FDA) to market the drug. The FDA's policy is that the pharmaceutical company must provide substantial evidence that a new drug is safe prior to receive FDA approval so that the FDA can confidently certify the safety of the drug to potential consumers.a.) If the new drug testing were to be placed in a test of hypothesis framework, would the null hypothesis be that the drug is safe or unsafe? The alternative hypothesis? (In an actual test, "safety" could be quantified using population parameters.) Fill in the blanks below.The null hypothesis would be that the drug is Select an answer unsafe safe and the alternative hypothesis would be that the drug is Select an answer unsafe safe. b.) Describe the Type I and Type II errors…

A research wants to determine if pre-natal exposure to the hormones in birth control pills alters the sex makeup of midshipman fish populations (which are typically half male and half female).Specifically, the researcher wishes to test the hypothesis that exposure to hormones will increase the number of females in the population.The researcher exposes a group of pregnant midshipman fish to birth control hormones and records the sex of the first 19 offspring birthed.They then observe that 0 are female.Use a sign test to test the indicated hypothesis.What is the obtained value?

A research wants to determine if pre-natal exposure to the hormones in birth control pills alters the sex makeup of midshipman fish populations (which are typically half male and half female).Specifically, the researcher wishes to test the hypothesis that exposure to hormones will increase the number of females in the population.The researcher exposes a group of pregnant midshipman fish to birth control hormones and records the sex of the first 11 offspring birthed.They then observe that 1 are female.Use a sign test and a alpha of .05 to test the indicated hypothesis.What is the critical value?

The owner of a small clothing store is concerned that only 28% of people who enter her store actually buy something. A marketing salesman suggests that she invest in a new line of celebrity mannequins (think Seth Rogan modeling the latest jeans...). He loans her several different "people" to scatter around the store for a two-week trial period. The owner carefully counts how many shoppers enter the store and how many buy something so that at the end of the trial she can decide if she'll purchase the mannequins. She'll buy the mannequins if there is evidence that the percentage of people that buy something increases. a) Write the owner's null and alternative hypotheses. b) In this context describe a Type I error and the impact such an error would have on the store. c) In this context describe a Type II error and the impact such an error would have on the store. d) Based on data that she collected during the trial period the store's owner found that a 98% confidence interval for the…

The NIH is funding a trial for a new antidepressant drug. A sample of 1000 people with severe depression are recruited and, at baseline, are given a questionnaire asking about their demographic characteristicsand their mental health. They are then randomly assigned to one of two groups. The treatment group receives the new antidepressant, a pill that must be taken twice a day. The control group receives a placebo pill containing nothing medically active, which must also be taken twice a day. After 10 weeks, researchers locate the individuals and ask them to fill out a questionnaire again assessing their mental health. At the end of the study, researchers find no statistically significant difference in the mental health of the treatment and control groups.   Q: Should we be concerned about unbalanced groups here? Is it possible to empirically explore whether this is a problem for this study?

1. Medical personnel are required to report suspected cases of child abuse.  Because some diseases have symptoms that mimic those of child abuse, doctors who see a child with these symptoms must decide between two competing hypotheses:                               H0 :  Symptoms are due to child abuse                               HA :  Symptoms are not due to child abuse During an interview, an Atlanta doctor stated, “If it’s actually a disease, the worst you have is an angry family.  If it is abuse, the kids in the family are in deadly danger.”  What is a Type II error in the context of this problem? Group of answer choices a. A Type II error indicates the doctor rejected Ho, and the doctor is claiming the symptoms are due to child abuse but they actually are not due to child abuse. The family is very angry at the doctor but the kids are not in danger. b. A Type II error indicates doctor failed to reject Ho, and the doctor is claiming the symptoms are NOT due to child…

A biologist is examining two genetic mutations. Genetic mutation A occurs in 15% of the population, mutation B occurs in 4% of the population, and 1% of the population have mutation B and do not have mutation A. a) Is having mutation A independent of having mutation B? Explain/show the reasoning for your answer. b) Is not having mutation A independent of having mutation B? Explain/show the reasoning for your work.