25. A patient has a hemoglobin of 11.2g/dL and a hematocrit…

Questions

25. A pаtient hаs а hemоglоbin оf 11.2g/dL and a hematocrit of 33.5%. His MCV indicates microcytosis and his MCH indicates hypochromia. It is correct to suspect:

 A simple rаndоm sаmple оf high interest mоrtgаges and a second simple random sample of low-interest mortgages is taken. For the 40 high-interest mortgages, the borrowers had a mean FICO credit score of 594.8 and a standard deviation of 12.2. For the 40 low interest mortgages, the borrowers had a mean FICO credit score of 785.2 and a standard deviation of 16.3.A) Use a 0.01 level of significance to test the claim that the mean FICO score of borrowers with high-interest mortgages is lower than the mean score for borrowers with low-interest mortgages. Does the FICO score appear to affect mortgage rates? (14pts) Perform the following steps:              (3pts) Step 1: Requirements             (2pts) Step 2:                                                (3pts) Step 3: Test statistic (round to 3 decimals)             (3pts) Step 4: P-value (round to 4 decimals)             (2pts) Step 5:  P-value method             (1pt) Step 6: Conclusion:    B) Construct a 98% confidence interval for the difference between the mean credit score for borrowers with high interest mortgages and those with low-interest mortgages. (6pts) Perform the following steps:              (1pt) Command:              (2pts) Information for the command:             (1pt) CI:              (2pts) Does it appear there is a difference between the two mean credit score for borrowers  from the two mortgages? Explain C) (2pts) Are the hypothesis test and the confidence interval giving the same result? Explain

Cаlculus_II_Exаm_3_Summer_2021.pdf