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1 The sample correlation coefficient between } and X is 0.5680 based on a random sample of observations. It has been found that the p-value

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1 The sample correlation coefficient between } and X is 0.5680 based on a random sample of observations. It has been found that the p-value is 0.050454 when testing Ho: p = 0 against the two-sided alternative #1: p # 0. To test Ho: p = 0 against the one-sided alternative /1: p > 0, what should be the p-value? Type your numerical answer here. Numbers only 2 In a random sample of 25 of 160 employees of a company, the mean number of hours of overtime billed in the week of Christmas was 6.5, with the sample standard deviation of 5.2 hours. Find the lower limit of a 95% confidence interval for the total number of hours of overtime billed during the week. Type your numerical answer here. Numbers only 3 Consider an estimated linear regression model with a response Y and 4 predictors X1, X2, X3, X4. For a random sample of 25 observations on the response and the 4 predictors, the following estimates are obtained using Excel Regression Statistics Multiple R 0.859825564 Standard Error 127.606 What is the adjusted R-square of the fitted model

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