Week 5 Individual Assignment Essay Example | Topics and Well Written Essays - 2000 words

workweek 5 Individual Assign handst - Essay Exampleis one-tailed (Left tailed) and we want to determine whether there has been a step-down in the weight of individuals who joined Weight Reducers International.Since the z-test statistic is little than -1.645 therefore at the 5% significance level, we possess sufficient evidence to close that those who bequeath join Weight Reducers International on average will lose slight than 10 pounds.Dole Pineapple, Inc., is concerned that the 16-ounce can of sliced pineapple is being overfilled. usurp the standard deviation of the process is .03 ounces. The quality control department took a random sample of 50 cans and found that the arithmetic mean weight was 16.05 ounces. At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p-value.We will bend the worthless hypothesis if the z-test statistic is greater than 1.645 (z 1.645) since the test is one-tailed (Right tailed) and we want to determine whether 16-ounce can of sliced pineapple is being overfilled.A recent term in The Wall Street Journal reported that the 30-year mortgage rate is now less than 6 percent. A sample of eight small banks in the Midwest revealed the following 30-year rates (in percent)We will reject the null hypothesis if t-test statistic is less than -2.998 since the test is one-tailed (left tailed) and we want to determine whether the 30-year mortgage rate is now less than 6 percentSince the t-test statistic is greater than -2.998 therefore we will not reject the null hypothesis. At 1% significance level we have sufficient evidence to conclude that the 30-year mortgage rate is not less than 6 percent.The minimum significance level (p-value) at which the null hypothesis can be spurned is between 5% and 10% since the value -1.61 lies in between -1.415 and -1.895 for a t-distribution with degrees of freedom = 7The null hypothesis is that there is no difference in the population mea n number of times men and women buy take-out dinner in