I am working on question 1 g I need help stating and the P value approach writing the Ho & Ha based on the information obtained from 1 e which was a 99% confidence interval for mean = 3.1859487,13,214051 of the mean amount of coffee drank in ounces per customer (this was a survey sample of 20 customers) sample mean was 8.2
to your word Problem le. In this question you are to use StatCrunch to construct a 99% confidence interval for the population mean relating to Variable 3 based on the twenty values you created for this variable in Problem 1 above. Copy and paste the StatCrunch Confidence Interval window (which displays the answer) to your Word solutions file under the subheading Problem le. Under this window, in the Word solutions document, type in the confidence interval computed. Interpret your solution. Appropriately interpret your interval. Problem If Referring to Problem le above, use StatCrunch to determine what sample size is required for estimating the population mean relating to Variable 3 assuming a margin of error equal to 10% of the sample mean and a 99% level of confidence? To answer this, assume that the population standard deviation equals the sample standard deviation, for just this one problem part 1f. Copy and paste the StatCrunch window (which displays the answer) to your Word solutions file under the subheading Problem 1f. Under this window, in the Word solutions document, type in the required minimum sample size. Problem 1g In constructing the confidence interval in Problem 1 e above, you made a key assumption regarding the sample data for Variable 3. At a 2% level of significance, conduct the appropriate hypothesis test to check this assumption. In your Word solution file, under a subheading entitled Problem 1g, display all the steps using the 4 step P-value Approach. Copy and paste the Hypothesis Test results window from StatCrunch to your Word solutions file under Step 2 of the test. Interpret your final decision.Chart v Table Pictures Shapes Icons 30 Add-ins Media Links Comment Header Footer Page Text Equation Models a Screenshot v Number Problem le. One sample T confidence interval: H: Mean of variable 99% confidence interval results: Variable Sample Mean Std. Err. DF L. Limit U. Limit Amount of Coffee (oz per cup) 8.21.7525921 193.1859487 13.214051 99% confidence interval is 8.2-1.75
