A Peony Plant with Red Petals Was Crossed with Another

Short Answer

A peony plant with red petals was crossed with another plant having streaky petals. A geneticist states that 80% of the offspring from this cross will have red flowers. To test this claim, 100 seeds from this cross were collected and germinated, and 65 plants had red petals.
Use the chi-square goodness-of-fit test to determine whether the sample data confirm the geneticist's prediction. Find the approximate p-value and use it to make your decision.
Compute :
______________
Reject when > ______________.
The p-value ______________.
We have sufficient evidence to conclude that the geneticist's model ______________ correct.
Use the large-sample z-test to test the hypothesis H₀: p = 0.80.
Compute the z-statistic.
______________
The p-value ______________.
We have sufficient evidence to conclude that the geneticist's model ______________ correct.