Fatimah wants to build a one-sample z interval to
estimate the proportion of students at her s...
Mathematics, 21.02.2020 01:00 niniaalvarez
Fatimah wants to build a one-sample z interval to
estimate the proportion of students at her school who ate
breakfast every day last week with 90% confidence. She
takes a random sample of 75 students and finds that 20
ate breakfast every day last week.
What critical value z* should Fatimah use to construct
this confidence interval?
A) z* = 1.282
B) z* = 1.645
C) z* = 1.96
D) z* = 2.576
Answers: 2
Mathematics, 21.06.2019 16:00
Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm
Answers: 2
Mathematics, 21.06.2019 21:30
Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll
Answers: 1
Mathematics, 21.06.2019 23:00
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.
Answers: 2
History, 02.08.2019 22:00
Mathematics, 02.08.2019 22:00
Biology, 02.08.2019 22:00
Arts, 02.08.2019 22:00
Mathematics, 02.08.2019 22:00
Mathematics, 02.08.2019 22:00
SAT, 02.08.2019 22:00
History, 02.08.2019 22:00
Computers and Technology, 02.08.2019 22:00