What it would mean for the null hypothesis to be true in this setting?

If the proportion of Heads is .25 out of 200 flips, what is the p-value? Round to three places.

I can't understand why the data is the percentage of surveyed parents.

If the proportion of Hs is .45 out of 200 flips, what is the p-value?

When you are done, click here to see a summary of your score Question with last attempt is displayed for your review only In a certain school district, it was observed that 29% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 130 out of 373 students are only children. The school district administrators want to know if the proportion of only children in the special program Is significantly different from the proportion for the school district. Test at the a 0.05 level of significance. What is the hypothesized population proportion for this test? P=0.34 (Report answer as a decimal accurate to 2 decimal places. Do not report using the percent symbol.) Based on the statement of this problem, how many tails would this hypothesis test have? one-tailed test two-tailed test Choose the correct pair of hypotheses for this situation: (A) (C) Ho p 0.29 0.29 (В) Но:P 0.29 Ho: p 0.29 H: p 0.29 (D)…

As part of a sixth-grade class project the teacher brings to class a jar containing 200 gumballs of two different colors: red and green.  Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar.  Andy draws a sample of 25 gumballs, of which 8 are red and 17 are green.  Use Andy's sample to estimate the number of red gumballs in the jar. There are approximately Answer red gumballs in the jar.

If the proportion of Hs is .45 out of 50 flips, what is the p-value? Round to three places.

In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation in statistical polling is the margin of error - the largest (reasonble) error that the poll could have. For example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% (72% minus 4% to 72% plus 4%).   In a (made-up) poll, the proportion of people who like dark chocolate more than milk chocolate was 39% with a margin of error of 1.3%. Describe the conclusion about p using an absolute value inequality.   The answer field below uses the symbolic entry option in Mobius. That lets you type in a vertical bar | to represent absolute values. Also, when you type in  <  and then =, the symbolic entry option will automatically convert that to  ≤ . In the same way, if you type in  >  and then =, the symbolic entry option will automatically convert that to  ≥.   Be sure to use decimal numbers in your answer (such as using 0.40 for 40%).

Sample # 1 and has been provided in the second screenshot (hand written)

The 95% interval for a statistics test was given by 55 + 7. What is the lower value for the interval? O a. 62 O b. 48 O c. 55 O d. 7