SAT, 02.07.2021 16:10 animaemaster
Gestation period is the length of pregnancy, or to be more precise, the interval between fertilization and birth. In Syrian hamsters, the average gestation period is 16 days. Suppose you have a sample of 31 Syrian hamsters who were exposed to high levels of the hormone progesterone when they were pups, and who have an average gestation length of 17.1 days and a sample variance of 26.0 days. You want to test the hypothesis that Syrian hamsters who were exposed to high levels of the hormone progesterone when they were pups have a different gestation length than all Syrian hamsters. Calculate the t statistic. To do this, you first need to calculate the estimated standard error. The estimated standard error is sM= . The t statistic is . Now suppose you have a larger sample size n = 95. Calculate the estimated standard error and the t statistic for this sample with the same sample average and the same standard deviation as above, but with the larger sample size. The new estimated standard error is . The new t statistic is . Note that the t statistic becomes as n becomes larger.
Answers: 3
SAT, 24.06.2019 17:30
Factors that determine climate can a- latitude, topography, huracan, ocean current b- sun, precipitation, winds, precipitation c- sun, ocean currents, latitude, topography, winds, precipitation d- latitude, topography, lighting, ocean current
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SAT, 25.06.2019 22:00
Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.
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SAT, 27.06.2019 10:00
Earth takes in thermal energy from the sun in a process called . sunlight strikes earth’s surface at different angles. this angle is called the angle of . btw its
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SAT, 28.06.2019 10:30
Rawls says that justice sometimes requires the sacrifice of things like freedom of speech for the sake of greater economic equality. true or false
Answers: 2
Gestation period is the length of pregnancy, or to be more precise, the interval between fertilizati...
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