A researcher wants to estimate the average height of women aged 20 years and above. From a simple random sample of 45 women, the researcher obtained a sample mean height of 63.9 inches.Identify the parameter and the statistic.*2 pointsThe parameter is the average height of the 45 women in the sample.The parameter is the average height of all women aged 20 years and above.Both of the average heights are parametersNo parameters are given.

For an upcoming government project, you are required to find the average height of the students in Class VIII of a given school. Instead of asking every student, you took a few students as your sample and noted their heights in the table given below. Roll Number Height8012 121.92 cm8045 133.21 cm8053 141.34 cm8099 126.23 cm8125 175.74 cmQuestion 2/3MandatorySamplingWhat is the mean of the sample?133.21139.69146.76141.34

Teacher Joy conducted a census in her class, and she found out that the average time that her students devote to studying is 2.25 hours, their average height is 147 cm, and a random sample of 10 students got an average of 87% in their latest quiz.Which of the given numbers is a statistic?*1 point2.25 Hours147cm87%10 Students

The distribution of heights of 6-year-old girls is approximately normally distributed with a mean of 46.0 inchesand a standard deviation of 2.7 inches. Aliyaah is 6 years old, and her height is 0.96 standard deviation above themean. Her friend Jayne is also 6 years old and is at the 93rd percentile of the height distribution. At whatpercentile is Aliyaah’s height, and how does her height compare to Jayne’s height?(A) Aliyaah’s height is at the 17th percentile of the distribution, and she is shorter than Jayne.(B) Aliyaah’s height is at the 67th percentile of the distribution, and she is shorter than Jayne.(C) Aliyaah’s height is at the 67th percentile of the distribution, and she is taller than Jayne.(D) Aliyaah’s height is at the 83rd percentile of the distribution, and she is shorter than Jayne.(E) Aliyaah’s height is at the 83rd percentile of the distribution, and she is taller than Jayne

Height and age: Are older men shorter than younger men? According to a national report, the mean height for U.S. men is 69.4 inches. In a sample of 304 men between the ages of 60 and 69, the mean height was =x68.8 inches. Public health officials want to determine whether the mean height μ for older men is less than the mean height of all adult men. Assume the population standard deviation to be =σ3.13. Use the =α0.05 level of significance and the P-value method with the TI-84 Plus calculator.Part 1 of 5(a) State the appropriate null and alternate hypotheses.:H0  =μ69.4:H1  <μ69.4This hypothesis test is a ▼left-tailed test.Part: 1 / 51 of 5 Parts CompletePart 2 of 5(b) Compute the value of the test statistic. Round the answer to two decimal places.z=

Which of the following represents the null and alternative hypotheses of the mean height of women is less  than 64