what would be the alternate hypothesis and type of test

In a test of H0: p = 0.40 against Ha: p # 0.40, the sample data yield the test statistics z = 1.78. Find the p-value for this test. Round your answer to 4 decimal places.

On average, a sample of n = 36 scores will provide a better estimate of the population mean than a sample of n = 49 scores from the same population.

Assume the cholesterol levels of an adult can be described by a Normal model with a mean of 183 ​mg/dL and a standard deviation of 27. Complete parts a through e.   ​b) What percent of adults do you expect to have cholesterol levels over 190 ​mg/dL?   enter your response here   ​% ​(Round to two decimal places as​ needed.) Part 3 ​c) What percent of adults do you expect to have cholesterol levels between 150 and 160 ​mg/dL?   enter your response here   ​% ​(Round to two decimal places as​ needed.) Part 4 ​d) Estimate the interquartile range of cholesterol levels.   IQR=enter your response here   ​mg/dL ​(Round to the nearest integer as​ needed.) Part 5 ​e) Above what value are the highest​ 15% of​ adults' cholesterol​ levels?   enter your response here   ​mg/dL ​(Round to the nearest integer as​ needed.)

I only need help with parts c and d. Thank you!!!

You are conducting a study to see if the proportion of women over 40 who regularly have mammograms is significantly different from 0.22. Your sample data produce the test statistic z = 3.03 . Find the pvalue accurate to 4 decimal places.