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

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=

One survey has been done on the MIIT campus to determine the heights of female students. The average height of the students was stated as 160cm. To check whether this average is correct, you formulate a statistical test. Define your null and alternate hypotheses.a.H0: µ ≥ 160cm  and H1: µ < 160cmb.H0: µ = 160cm  and H1: µ ≠ 160cmc.H0: µ = 160cm  and H1: µ > 160cmd.H0: µ = 160cm  and H1: µ < 160cm

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.

Watch your weight: A study published in 2008 reported that the mean weight of men aged 40-59 was 89.3 kg. Another study, published in 2016, reported that a sample of 192 men aged 40-59 had an average weight of 87 kg. Assume the population standard deviation is =σ14.2 kg. Can you conclude that the mean weight of men aged 40-59 is lower in 2016 than in 2008? Use the =α0.05 level of significance.Part: 0 / 50 of 5 Parts CompletePart 1 of 5(a) State the appropriate null and alternate hypotheses.H0: H1: The hypothesis test is a ▼left-tailed test.

The Null and Alternative HypothesesLet’s say you are collecting data on employee age for your company in order to verify certain claims. For this, you collect data from a sample of 40 employees.Which of the following statements is correct?The null hypothesis can claim that the average age of employees is less than 38 years.The alternate hypothesis can claim that the average age of employees is not 32 years.The null hypothesis can claim that the average age of the sample of employees is 35 years.✕ IncorrectFeedback:Hypothesis testing is used to test claims about the population parameters (such as the population mean) using the sample data. Hence, the alternative hypothesis (or the null hypothesis, for that matter) cannot refer to a claim about the sample. Hence, this option is incorrect.The alternative hypothesis can claim that the average age of employees is greater than or equal to 27 years.