A research team is investigating female dogs. Their research question is: Are more than 80% of female dogs spayed? They collected a random sample of 400 female dogs and 326 of them had been spayed. At the 5% significance level, is there strong enough evidence to conclude that more than 80% of female dogs are spayed?   What is the alternative hypothesis for this scenario?

Calculate the p-value, round your answer to 4 decimal places. A nurse is interested in the average weight of a newborn baby. The nurse collects a random sample of 14 newborn babies. From the sample, she observes an approximately normal histogram and an average of 8.17. The population standard deviation is 2.38. Using a significance level of 10%, test the claim that the average weight of a newborn baby is greater than 7 pounds.

*BONUS QUESTION 4* I am about to run a hypothesis test to test if a majority of SFA students have internet access. I fear a Type I Error more than a Type II Error and set my significance level appropriately. The calculated p-value is 0.0429.   What is the null hypothesis and research hypothesis for this test?

 Match the symbol with the correct phrase.

*BONUS QUESTION* Felix is a quality control expert at a factory that paints car parts. Their painting process consists of a primer coat, color coat, and clear coat. For a certain part, these layers have a combined target thickness of over 150 microns, on average. Felix measured the thickness of 40 randomly selected points on one of these parts to see if it was painted properly. His sample had a mean thickness of 147 microns and the population standard deviation of 3.3 microns. The sample histogram shows a symmetric, bell-shaped curve and the chosen significance level is 4% . Answer the questions below. For full credit, you must include all of the following in the space provided: 1) The appropriate confidence interval. Round your final answers to two decimal places. 2)  Write a sentence interpreting your interval.  3) Based on your interval, is it plausible that this part’s average thickness is meeting the target value? Why or why not? (This does not need to be more than 1-2 sentences.)

Write the correct p-value statement for the following problem. You may or may not want to copy/paste one of the following symbols into your p-value statement, ≥ ≤ ≠{“version”:”1.1″,”math”:”≥ ≤ ≠”} Round your test statistic to 2 decimal places. A company is cutting sirloin stakes. They are inspecting the machine that cuts the 12 ounce sirloins because they believe the machine is malfunctioning. They took a random sample of 35 cuts made by this machine And found that the sample had an average weight of 12.23 ounces with a standard deviation of 0.89 ounces. Is there strong enough evidence to conclude that the average weight of Sirloin Steaks cut by this machine is different from 12 ounces? use a significance level of 5%.

Match out the following numbers in letter or digit number. 

_________is to transcription as__________are to translation.

In some cases, altruistic behavior could be explained by group selection. However, group selection requires which of the following for it to operate?

Which statement about adaptation is correct?