Exam Question 5 Given below is the sampling distribution of sample proportions from samples of California residents who have pets in their household. What is the value of the population proportion? Explain how you know.  What is the value of the standard error? Explain how you know. How will the standard error change if the sample size is increased? Explain.

Prof Rea’s Exam Question 2. A restaurant is deciding which farm to order berries from for a seasonal dessert on their menu. The average cost for a pound of berries in California is $2.82 with a population standard deviation of $0.45. Assume that berry cost in California is normally distributed. Suppose that farms in California sell 10 different kinds of berries.  Explain why the sampling distribution of sample means is approximately normal.  Compute the mean,

Exam Question 10 Let  represent the Covid vaccination rate in Rancho Cucamonga. The null and alternative hypotheses are , . Given this information, write the claim being tested. Sandy tests the claim and finds the P-value to be 0.03. Write the conclusion in plain language if the level of significance is 1%.

Exam Question 3 The systolic blood pressure (given in mm Hg) of females has an approximately normal distribution with mean µ = 125 and standard deviation σ = 11. Label the tick marks on the horizontal axis using what you know about the normal distribution and noting that the distance between each tick mark is 1 standard deviation. Adam says that . Describe three mistakes that Adam made. Then explain to him how to fix them. Identify the systolic BPs that encompass approximately 95% of all systolic BP’s of females. Explain why.

The function of the “ciliary escalator” is to ________________.

Innate immunity is nonspecific and present at birth.

Which of the following cell is involved in resistance to parasitic helminths?

Innate immunity is nonspecific and present at birth.

Which of the following cell is involved in resistance to parasitic helminths?

Siderophores are bacterial proteins that compete with the host’s sulfur-transport proteins.