Mathematics, 16.03.2022 14:00 mocheal8216
One year, many college-bound high school seniors in the U. S. took the Scholastic Aptitude Test (SAT). For the verbal portion of this test, the mean was 425 and the standard deviation was 110. Based on this information what percentage of students would be expected to score between 350 and 550
Answers: 2
Mathematics, 22.06.2019 00:00, johnisawesome999
Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?
Answers: 2
Mathematics, 22.06.2019 01:10, 3peak101
Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?
Answers: 2
Mathematics, 22.06.2019 03:50, jescanarias22
Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.
Answers: 3
One year, many college-bound high school seniors in the U. S. took the Scholastic Aptitude Test (SAT...
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