1) True or False questions followed by hypotheses interpretation. a) The appropr

Question

1) True or False questions followed by hypotheses interpretation.

a) The appropriate null and alternative hypotheses must be formulated before an experiment is carried out or any sampling done.

b) Critical values partition the sampling distribution into region(s) where H0 will be accepted and region(s) where H0 will be rejected.

c) If the relative P-value of a test statistic is relatively small, then its test statistic will also be small.

d) In a test of hypothesis it is generally easier to know the probability of a Type I error than the probability of a Type II error.

e) Since Type I error is under the experimenter's control, it is standard procedure to make it as small as possible.

f) If the probability of a Type I error is denoted by , the probability of a Type II error is denoted by 1-

g) The power of a statistical test of hypothesis can be increased or the probability of a Type II error decreased by increasing the sample size(s) in the experiment.

h) As part of a larger study of the effects of strenuous exercise on human fertility and fecundity, the ages (in years) of menarche (the beginning of menstruation) for 10 Olympic female endurance athletes (runners and swimmers) who had vigorously trained for at least 18 months prior to menarche were recorded. =12.5 years. Do you feel that the mean is significantly higher than the overall mean for nonathletes. You do not need to include units in your hypotheses. For your Moodle submission a” ” symbol should be typed as “<=” and a “ ” should be typed as “mu”. Please do not put any spaces in your answer.)

*please state the null and alternate hypothesis

i) The human carcinogen dioxin can be produced by the burning of common trash. It is hypothesized that trash from homes that recycle will produce less dioxins per kilogram of trash burned than homes that don't recycle. It is thought that a higher proportion of chlorine and metals in the burner’s trash is the cause of higher levels of dioxin per kilogram. =200 pg/kg. Do the recyclers' trash produce significantly less than the mean dioxin per kilogram? You do not need to include units in your hypotheses. For your moodle submission a” ” symbol should be typed as “>=” and a “ ” should be typed as “mu”. Please do not put any spaces in your answer.

*please state the null and alternate hypothesis

j) The Flightless birds of the genus Dinornis, commonly known as moas, were hunted to extinction shortly after the islands of New Zealand were permanently settled around 1310. Because of their recent extinction and the large population sizes prior to human exploitation a great many fossil bones can be found. From a remote site on the North Island, 16 femur bones were recovered and measured. These bones had an average length of 122 cm. Are the bones found larger than the largest known moa species, Dinornis giganteus. D. giganteus is described as having a mean femur length of 115 cm. You do not need to include units in your hypotheses. For your moodle submission a” ” symbol should be typed as “<=” and a “ ” should be typed as “mu”. Please do not put any spaces in your answer.)

*please state the null and alternate hypothesis

Explanation / Answer

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.