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Free_Kalibri [48]
3 years ago
6

Please help me with this.

Mathematics
2 answers:
ivann1987 [24]3 years ago
7 0

Answer:

dhsjbsndbdjdnd

Step-by-step explanation:

dkdjnd

snow_lady [41]3 years ago
3 0

Answer:

Angl.(QMT) = 134°

Angl.(QMT) = Angl.(QMS)+ Angl.(SMT)

or, 134°= (7x-4)° + (2x+3)°

or, 134° = 7x + 2x -4° +3°

or, 134° = 9x -1°

or, 134° + 1° = 9x

or, 135° = 9x

or, 135°/9° = x

or, 45° = x

x=45°

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When obtaining a confidence interval for a population mean in the case of a finite population of size N and a sample size n whic
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Answer:

95% Confidence interval for the mean

142.8 \leq\mu\leq158.4

Step-by-step explanation:

We have to calculate a 95% confidence interval for the mean of a finite population.

The error is multiplied by the following finite population correction factor:

cf=\sqrt{\frac{N-n}{N-1} }

The standard deviation can be estimated as

\sigma=\frac{s}{\sqrt{n}} \sqrt{\frac{N-n}{N-1} } =\frac{24.4}{\sqrt{32} }* \sqrt{\frac{200-32}{200-1} }=3.963

The 95% confidence interval has a z value of 1.96, so it becomes:

M-z*\sigma_c\leq\mu\leq M+z*\sigma_c\\\\150.6-1.96*3.963\leq\mu\leq 150.6+1.96*3.963\\\\ 142.8 \leq\mu\leq 158.4

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9514 1404 393

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