Question

Question Help Suppose the mean height of women age 20 years or older in a certain country is 62.4 inches. One hundred randomly selected women in a certain city had a mean height of 620 inches. At the 15 significance level do the data provide sufficient evidence to conclude that the mean height of women in the city differs from the national mean? Assume that the population standard deviation of the heights of women in the city is 3.5 inches Click here to view a partial table of areas under the standard normal curve. Set up the hypotheses for the one- man-test H: H: The test statistic is - (Round to two decimal places as needed) The P.value is (Round to four decimal places as needed) the null hypothesis. The data sufficient evidence to conclude that the average height of women in the city is the average height of women in the country

Answer 1

Test Hypothesis Ho: l = 62.4 Ha: lll & 62.4. x-ll Test Statistics: ZE who a ã= 62, 8= 3.5, na100 62- 62.4 Za --|(1428 3.5 100 Z=-11428 pvalue! At 2 =-1:1428, Osing z distribution e tail p value = 0.2531 Pvalue > 0.01 to of data is not sufficient Fail to reject. How the evidence conclue that the aug height women in the citry is T different ot women the country. the aug. in height