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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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arichman7730 arichman7730
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6 years ago
A mortgage broker is offering home mortgages at a rate of 9.5 but is fearful that this value is higher than many others are charging. A sample of 40 mortgages filed in the county court house shows an average of 9.25 with a standard deviation of 8.61. Does this sample indicate a smaller average? Use = 0.05 and assume a normally distributed population.
 a. Yes, the test statistic falls in the rejection region.
  b. No, the test statistic falls in the acceptance region.
  c. Yes, because the test statistic is greater than -1.645.
  d. No, because the test statistic is -1.85 and falls in the rejection region.
  e. Yes, because the sample mean of 9.25 is below 9.5.
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tiss9889tiss9889
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6 years ago
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arichman7730 Author
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6 years ago
This site is awesome
SlimyPencil
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Yesterday
Smart ... Thanks!
acaruso
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2 hours ago
Thank you, thank you, thank you!
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