Answer:
Answer C: Becky is 27; John is 31
Step-by-step explanation:
1. John is 4 years older than Becky--27(Becky's age)+ 4=31(John's age)
2. Sum of their ages is 58--27(Becky's age)+31(John's age)=58
So, the correct answer is Answer C.
Answer: C. A conclusion based on a confidence interval estimate will be the same as a conclusion based on a hypothesis test.
Explanation: The One-Sample Proportion Test is used to assess whether a population proportion (P1) is significantly different from a hypothesized value (P0). This procedure calculates sample size and statistical power for testing a single proportion using either the exact test or other approximate z-tests.
To write a null hypothesis, first, start by asking a question. Rephrase that question in a form that assumes no relationship between the variables. In other words, assume a treatment has no effect. Write your hypothesis in a way that reflects this.
A null hypothesis is a hypothesis that says there is no statistical significance between the two variables. It is usually the hypothesis a researcher or experimenter will try to disprove or discredit. An alternative hypothesis is one that states there is a statistically significant relationship between two variables.
Answer:
here's the solution :-
Step-by-step explanation:
i hope it helped...
Answer:
3744 inches squared, and 8 bags
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
˜”*°•.˜”*°• Area: •°*”˜.•°*”˜
Well, the formula for area is L*W
L=78 inches
W=48 inches
78*48=3744 inches squared
˜”*°•.˜”*°• Number of bags: •°*”˜.•°*”˜
3744/500=7.448
So he would need to buy 8 bags
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