Mathematics, 30.11.2021 05:30 Pattondestiny
An economist wishes to conduct a survey in two different cities in the same county to determine the difference in the proportions of residents who believe that economy is improving under president Trump. A 99% confidence interval is to be constructed for the difference between the proportions. If the sample sizes for both cities are to be equal, find the minimum sample size needed for each city so that the margin of error not to exceed 6%. consider P1= 0.585, n1= 110, P2= 0.526, n2=90. find the pooled proportion P
Answers: 1
Mathematics, 21.06.2019 13:00, nathalyviruete
Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle
Answers: 3
Mathematics, 21.06.2019 18:30, JvGaming2001
School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?
Answers: 2
Mathematics, 22.06.2019 01:10, calmicaela12s
A3cm×3cm\greend{3\,\text{cm} \times 3\,\text{cm}} 3cm×3cm start color greend, 3, space, c, m, times, 3, space, c, m, end color greend rectangle sits inside a circle with radius of 4cm\blued{4\,\text{cm}} 4cm start color blued, 4, space, c, m, end color blued . what is the area of the shaded region? round your final answer to the nearest hundredth.
Answers: 3
An economist wishes to conduct a survey in two different cities in the same county to determine the...
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