Mathematics, 08.04.2020 00:14 brittanygibson2812

A toy manufacturer wants to know how many new toys children buy each year. Assume a previous study found the variance to be 2.25. He thinks the mean is 7.2 toys per year. What is the minimum sample size required to ensure that the estimate has an error of at most 0.12 at the 95% level of confidence

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 17:40

Aregular hexagon has sides of 2 feet. what is the area of the hexagon? 12 ft2 12 ft2 24 ft2 6 ft2

Answers: 2

Answer

Mathematics, 21.06.2019 21:40

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Answers: 2

Answer

Mathematics, 21.06.2019 23:20

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

Answers: 1

Answer

Mathematics, 22.06.2019 00:50

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?

Answers: 3

Answer

You know the right answer?

A toy manufacturer wants to know how many new toys children buy each year. Assume a previous study f...

Questions

Mathematics, 18.09.2020 05:01

What is 9.6÷0.91 the answer...

Mathematics, 18.09.2020 05:01

40/25 as a mixed number...

Mathematics, 18.09.2020 05:01

What is 14 over 8 in simplest form...

Mathematics, 18.09.2020 05:01