If the coefficient of determination is 0.81, then what is value of coefficient of non-determination?

A 2014 Pew Research Center Survey asked 2,002 adults about the intersection of politics and science. Of the survey participants, 1,281 responded "neither" when asked if they perceive scientists as politically liberal or conservative. What are the values of p′, "successes", or the estimated proportion of Americans who perceive scientists as neither politically liberal or conservative, and q′, the estimated proportion of Americans who perceive scientists as politically liberal or conservative? Answer in decimal form, rounding to the nearest hundredth.

1/2+4/5=?and then find the answer as a percentage?

What is the 1-column front-end estimation of: 113 + 97 + 788 ?

How do we calculate p?

Explain MEAN SQUARES (M S) AND F RATIOS.

A study was undertaken to determine whether the consumers have any preference among four brands of cars. A sample of 200 people was used to collect data. I. II. Brand Number of consumers A 49- B B 52- α с 61+ B D 38+a Chi-square goodness of fit test can be applied to the above data set. Write 2 reasons. Using chi squared goodness of fit test, determine whether the consumers have any preference among four brands of cars. State your hypotheses and all workings clearly. (Critical value for degrees of freedom 3 and significance level 0.05 is 7.815.)

A home pregnancy test was given to women, then pregnancy was verified through blood tests. The following table shows the home pregnancy test results.   Positive Negative Total Pregnant 54 9 63 Not Pregnant 4 55 59 Total 58 64 122 Round your answers to the nearest thousandth.PP(positive∣∣pregnant) = PP(pregnant∣∣positive) = PP(negative∣∣pregnant) = PP(not pregnant∣∣negative) =

A study of n = 2252 adults age 18 or older found that 72% of the cell phone users send and receive text messages.15 A study of n = 800 teens age 12 to 17 found that 87% of the teen cell phone users send and receive text messages. What is the best estimate for the difference in the proportion of cell phone users who use text messages, between adults (defined as 18 and over) and teens? Give notation (as a difference with a minus sign) for the quantity we are trying to estimate, notation for the quantity that gives the best estimate, and the value of the best estimate. Be sure to clearly define any parameters in the context of this situation.

How would I identify the p-value?