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Birva Barot
Answers (4)
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Answered
The sample ____________________ is an unbiased estimator for the population mean.
On Jun 23, 2024
mean
average
average
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Loretta deposits $350 every quarter into a savings account that earns 4.5% interest compounded quarterly.What is the balance after 7 years?
A) $10,312.63
B) $11,344.18
C) $11,444.27
D) $12,477.74
A) $10,312.63
B) $11,344.18
C) $11,444.27
D) $12,477.74
On Jun 20, 2024
C
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If a researcher decreases the confidence level from 99% to 90%, the confidence interval for the mean is ______.
A) widened
B) unchanged
C) narrowed
D) restricted
A) widened
B) unchanged
C) narrowed
D) restricted
On May 24, 2024
C
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Perform operations and gather like terms:
96nm2−72n2m248n2m\frac{96 n m^{2}-72 n^{2} m^{2}}{48 n^{2} m}48n2m96nm2−72n2m2
96nm2−72n2m248n2m\frac{96 n m^{2}-72 n^{2} m^{2}}{48 n^{2} m}48n2m96nm2−72n2m2
On May 21, 2024
96nm2−72n2m248n2m=4m−3nm2n=4m2n−3nm2n=2mn−1.5m\frac{96 n m^{2}-72 n^{2} m^{2}}{48 n^{2} m}=\frac{4 m-3 n m}{2 n}=\frac{4 m}{2 n}-\frac{3 n m}{2 n}=2 \frac{m}{n}-1.5 m48n2m96nm2−72n2m2=2n4m−3nm=2n4m−2n3nm=2nm−1.5m