Question

Q: 1- A study of 200 males versus 200 females mean blood pressure scores. The mean...

Q:

1- A study of 200 males versus 200 females mean blood pressure scores. The mean blood pressure for females is 110 with a standard deviation of 9 and for males, the mean blood pressure score is 125 with a standard deviation of 12.

Form a 95% confidence interval for the mean blood pressure for females and males. (Z score=1.96)

2-A study was done on the proportion of males and females who participate in athletics. 490 females and 540 males participated in the study, where 160 females and 215 males participated in athletics

Form a 95% CI for each of the proportion of female and male athletes (Z score=1.96)

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A doctor hypothesizes that females have higher systolic blood pressure than males. The doctor obtains the...
A doctor hypothesizes that females have higher systolic blood pressure than males. The doctor obtains the blood pressure from a sample of patients during their annual check-up. Below is the systolic blood pressure for the sample. What can be concluded with α = 0.05? male female 106 119 98 105 100 132 109 113 98 105 137 105 119 115 127 122 131 124 111 136 a) What is the appropriate test statistic? ---Select--- na z-test One-Sample t-test Independent-Samples t-test...
Adult females in the US have normally distributed diastolic blood pressures with mean μ = 77...
Adult females in the US have normally distributed diastolic blood pressures with mean μ = 77 mm Hg and standard deviation σ = 11.6 mm Hg. Use this information to answer the following questions: (a) 95% of adult females have diastolic pressures in what range? Enter the answer as an interval.(Use the 68-95-99.5 Rule) (b) Sophia’s diastolic blood pressure is 68. What is the z-score of this value? (Use The formula for z-score) (c) If we choose a woman at...
a. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution with...
a. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution with mean μ = 122 millimeters and standard deviation σ = 16 millimeters. Systolic blood pressure for females follows a normal distribution. Calculate the z-scores for a female systolic blood pressure of 136 millimeters (Round answer to 3 decimal places). b. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution with mean μ = 122 millimeters and standard deviation σ...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean μ = 135 and standard deviation σ = 12. (a) Calculate the z-scores for the male systolic blood pressures 130 and 140 millimeters. (Round your answers to two decimal places.) 130 mm      z = 140 mm z = (b) If a male friend of yours said he thought his systolic blood pressure was 2.5 standard deviations below the mean, but that he believed his...
A study is run to estimate the mean Systolic Blood Pressure level in adults 60 to...
A study is run to estimate the mean Systolic Blood Pressure level in adults 60 to 80 years of age. A sample of 10 participants is selected and their Systolic Blood Pressure levels are measured as follows. 125      135      160      146      135      140      154      170      110      140 Compute Quartiles 1 and 3 Q1=135 and Q2= 152 Q1=152 and Q2=135 Q1=125 and Q2=160 a and b
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean 123 and standard deviation 12. Systolic blood pressure for males follows a normal distribution. The bottom 7% of men have systolic blood pressures below what value?
Application Exercise: A physician hypothesizes that males have higher systolic blood pressure than females. The physician...
Application Exercise: A physician hypothesizes that males have higher systolic blood pressure than females. The physician obtains a sample of patients and measures their blood pressures during their regular check-up. Below is the systolic blood pressure for the sample. What can the physician conclude with α = 0.01? male female 106 119 98 105 100 132 109 113 98 105 137 115 119 115 127 122 131 124 111 136 a) What is the appropriate test statistic? ---Select--- na z-test...
1. The National Center for Health Statistics reports that the systolic blood pressure for males (35-44...
1. The National Center for Health Statistics reports that the systolic blood pressure for males (35-44 years of age) has a mean 128 and standard deviation 15. The medical director of a large company looks at the medical records of 105 executives in same age group and finds that the mean systolic blood pressure in this sample is 126.30. At 95% level, is this evidence that the company’s executives have a lower mean systolic blood pressure than the general population?
A health study reported that in one country, systolic blood preassure reading hav a mean of...
A health study reported that in one country, systolic blood preassure reading hav a mean of 120 and a standard deviation of 18. A reading above 140 is considered to be high blood pressure. Complete parts a through d below. a. What is the z-score for a blood pressure reading of 140? (round to 2 decimal places) b. The proportion with high blood pressure is? (Round to four decimals) c. What proportion of the population has systolic blood pressure in...
Suppose that diastolic blood pressure readings of adult males have a bell-shaped distribution with a mean...
Suppose that diastolic blood pressure readings of adult males have a bell-shaped distribution with a mean of 80 mmHg and a standard deviation of 11 mmHg. Using the empirical rule, what percentage of adult males have diastolic blood pressure readings that are greater than 102 mmHg?