Mathematics, 22.07.2019 06:00, ashuntihouston14
Aleading medical journal claims that 68% of high school students experience anxiety just before an exam. a school counselor wants to conduct a survey to verify this with the students in her school and wants to do so with a margin of error (me) of ±7%. what minimum sample size, rounded to the nearest whole person, does the counselor need to use? hint: me equals plus or minus two times square root of start fraction p hat left parenthesis one minus p hat right parenthesis over n end fraction end square root, where p hat is the yes proportion in the sample and n is the sample size. n ≥ 175 n ≥ 178 n ≥ 200 n ≥ 262
Answers: 1
Mathematics, 21.06.2019 16:30, kayleefaithblair
Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88
Answers: 1
Mathematics, 21.06.2019 20:30, nosugh
If m∠abc = 70°, what is m∠abd? justify your reasoning. using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°. using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°. using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality. using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.
Answers: 2
Mathematics, 21.06.2019 21:30, Buttercream16
Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.
Answers: 3
Aleading medical journal claims that 68% of high school students experience anxiety just before an e...
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