A researcher looking for evidence of extrasensory perception (ESP) tests 1000 subjects. Forty-three of these subjects do significantly better (P < 0.05) than random guessing. What should the researcher now do to test whether any of these 43 subjects have ESP? The researcher should ask the subjects if they really have ESP or if they just guessed. The researcher should retest the 43 subjects with a different version of the test. The researcher should repeat the test for the entire sample. O The researcher should check whether their results lie within the boundaries of the confidence interval.

How would you find (a.) and (b.)?? As well as finding the test statistic and p-value?

According to the Minnesota Baccalaureate Psychomotor Skills Test (2008) your patient has significantly greater psychomotor skills than the average patient. Which of the following results would be appropriate to see with this finding? a-Z=1.36 (p=0.01) b-Z=5.67(p=0.08) c-Fail to reject the null d-Z= -1.98 (p=0.02) why is the answer a? and what is a trick to remember with p values? i understand that it is 0.05 or 5% chance of error

A researcher takes a sample of 50 individuals and administers a background check to identify the number of prior arrests for each person. For whatever reason, one person is removed from the analysis and another random person is selected to replace that person. Having no additional information, what is your best guess of the number of prior arrests experienced by the replacement person? Why?

There are many ways to measure the reading ability of children. Research designed toimprove reading performance is dependent on good measures of the outcome. Onefrequently used test is the DRP, or Degree of Reading Power. A researcher suspects that themean score µ of all third- graders in Henrico County Schools is different from the nationalmean, which is 32. To test her suspicion, she administers the DRP to an SRS of 44 HenricoCounty third-grade students. The distribution of scores is summarized in the Minitab outputbelow: MEAN STDEV SEMEAN MIN Q1 MEDIAN Q3MAXDRP 35.09 11.19 1.69 14.00 26.00 35.00 44.0054.00 Construct a 90% confidence interval to estimate the mean DRP score in Henrico CountySchools.

Does the source of medical information affect people’s confidence that it is true?  To answer this question, you presented medical information to participants regarding the importance of vaccinations.  Participants were randomly assigned to read medical information from a doctor, a politician, or a celebrity.  Then, they indicated how confident they were that the information is true.

A dowser has correctly located water for a well 1 out of 2 times in Jones County. In Jones County, someone who is just guessing has a 40% chance of locating water for a well. Does this sample provide sufficient evidence that the dowser can locate water and is not just guessing?

The General Social Survey is an annual survey given to about 1500 U.S. adults selected at random. A recent survey contained the question "How important to your life is having a fulfilling job?" Of the 267 college graduates surveyed, 106 chose the response "Very important." Of the 113 people surveyed whose highest level of education was high school or less, 59 chose the response "Very important." Based on these data, can we conclude, at the 0.05 level of significance, that there is a difference between the proportion p1 of all U.S. college graduates who would answer "Very important" and the proportion p2 of all U.S. adults whose highest level of education was high school or less who would answer "Very important"?Perform a two-tailed test. Then complete the parts below.Carry your intermediate computations to three or more decimal places and round your answers as specified in the parts below. (If necessary, consult a list of formulas.) A. Find the value of the test statistic and round to…

Due to a consumer protection law which penalizes manufacturers if their products are under filled (contains less than the advertised amount), some manufacturers deliberately overfill slightly. For example, the label on the container of Morton Iodized Salt shows its volume to be 26 ounces. Suppose the distribution of volumes of salt is approximately normal with a mean 26.9 ounces and a standard deviation of 0.51 ounces. Find the probability a randomly selected container has at most 26.0 ounces. Express the answer as a decimal value rounded to the nearest thousandth.