Mathematics, 26.08.2019 14:00 shortyyashaun
Asample of 100 janitors in a certain school district found that the average time each janitor had worked for the school district was 8 years. suppose we know that the standard deviation of the population is s=5 years. construct a 95% confidence interval for the mean time of the population of janitors have spent with the school district.
a) 8±1.98
b) 8±0.82
c) 8±0.71
d) 8±1.53
e) 8±0.98
Answers: 1
Mathematics, 21.06.2019 18:00
Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.
Answers: 3
Mathematics, 21.06.2019 20:10
Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52
Answers: 2
Mathematics, 21.06.2019 21:00
When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years
Answers: 1
Asample of 100 janitors in a certain school district found that the average time each janitor had wo...
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