The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested? H₁: p=0.76 H₁: p>0.76 Choose the correct answer below. OLeft-tailed OTwo-tailed Right-tailed E
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The hypotheses are given as follows:
The objective is to determine the nature of the hypothesis testing and the parameter of interest.
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- In a statistics activity, students are asked to spin a penny and a dime and determine the proportion of times that each lands with tails up. The students believe that since a dime is lighter, it will have a lower proportion of times landing tails up compared to the penny. The students are instructed to spin the penny and the dime 30 times and record the number of times each lands tails up. For one student, the penny lands tails side up 18 times, and the dime lands tails side up 20 times. Let pp = the true proportion of times a dime will land tails up and pp = the true proportion of times a penny will land tails up. Which of the following is the correct standardized test statistic and P- value for the hypotheses, H Pp-P,0 and H Po-P,<0? Find the z-table here, O z=0.60 -0.63 10.6310.37) 60 P-value=0,592 0.60 - 0.67 O z- P-value =0.296 T0.63X0.37) , (0.63I0,37) 30 30 0.60 -0.67 TI0.6010.40) , (0.67)0.33) P-value = 0.296 Mark this and retum Save and Exit Next Submit & 5 6. 8Determine whether the claim stated below represents the null hypothesis or the alternative hypothesis. If a hypothesis test is performed, how should you interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypothesis?A scientist claims that the mean incubation period for the eggs of a species of bird is at most 47 days.Determine whether the claim stated below represents the null hypothesis or the alternative hypothesis. If a hypothesis test is performed, how should you interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypothesis? An automotive manufacturer claims that the standard deviation for the gas mileage of one of the vehicles it manufactures is at most 2.2 miles per gallon. Does the claim represent the null hypothesis or the alternative hypothesis?
- If the calculated test statistic falls in the rejection region, the statistical action is to __________. reject the alternate hypothesis reject the null hypothesis reject both the hypotheses accept both the hypothesesA television show conducted an experiment to study what happens when buttered toast is dropped on the floor. When 49 buttered slices of toast were dropped, 28 of them landed with the buttered side up and 21 landed with the buttered side down. Use a 0.01 significance level to test the claim that toast will land with the buttered side down 50% of the time. Use the P-value method. Use the normal distribution as an approximation to the binomial distribution. After that, supposing the intent of the experiment was to assess the claim that toast will land with the buttered side down more than 50% of the time, write a conclusion that addresses the intent of the experiment.Suppose there is a claim that a certain population has a mean, p, that is 5 or more. You want to test this claim. To do so, you collect a large random sample from the population and perform a hypothesis test at the 0.10 level of significance. To start this test, you write the null hypothesis, Hy and the alternative hypothesis, H, as follows. H: u<5 Suppose you also know the following information. The value of the test statistic based on the sample is -1.572 (rounded to 3 decimal places). The p-value is 0.058 (rounded to 3 decimal places). (a) Complete the steps below for this hypothesis test. Normal Distribution Step 1: Select one-tailed or two-tailed. o One-tailed O Two-tailed 0.3 Step 2: Enter the test statistic. 02 (Round to 3 decimal places.) Step 3: Shade the area represented by the p- value. (b) Based on your answer to part (a), which statement below is true? Since the p-value is less than (or equal to) the level of significance, the null hypothesis is rejected. Since the p-value…
- Request Request le Docs b. 0.0042 c. 0.8315 d. 0.5000 the z* multiplier for an 85% The z* multiplier for a 98% confidence interval for p, - p, would be confidence interval for p1- p2- Select one: a. larger than b. smaller than C. the same as d. none of the above. An agricultural researcher wishes to see if a kelp extract prevents frost damage on tomato plants. Two similar small p are going to be planted with the same variety of tomato. Both plots will be treated identically with the exception that t plants on plot1 are going to be sprayed weekly with a kelp extract while the plants in plot 2 are not. Let p1 and p2 be the actual proportion of all tomatoes of this variety that would experience crop damage undor th and no kelp treatments respectively, when grown under Gondition aderPlease help me with this statistic problem and thank you!! Identify the null and alternative hypotheses: H0: p, μ, or σ | =, >, ≠, or, < ____________________ H1: p, μ, or σ | =, >, ≠, or, < ____________________ (Type integers or decimals. Do not round.) Identify the test statistic: __________________ (Round to two decimal places as needed.) Identify the P-value: ________________________ (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that address the original claim: Fail to reject or reject the null hypothesis. There is or is not sufficient evidence at the 0.05 significance level to warrent rejection of or rejection the claim that the sample is from a population with a mean equal to 8.953 gThe test statistic in a right-tailed test is z=-0.73. Determine the P-value and decide whether, at the 10% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. The P-value is _____________.(Round to three decimal places as needed.) This P-value _____________ (does not provide or provides) sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis because it is ______________ (greater than or less than) the significance level
- You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies:HoHo : pA=0.15p; pB=0.3; pC=0.15; pD=0.4pComplete the table. Category ObservedFrequency ExpectedFrequency SquaredResidual A 16 B 33 C 16 D 43 What is the chi-square test-statistic for this data?χ2=Report all answers accurate to three decimal places.VERY IMPORTANT NOTE: Answers are reported to 3 decimal places, but you should use all the decimal places to calculate the final chi-square test statistic...DO NOT use the rounded number you report in the table.answer multiple choiceH0: =, >, <, or ≠ _______________ year (s). H1: =, >, <, or ≠ _________________ year (s). Since the P-value is less than or equal to, or more than or equal to the significance level, reject or do not reject the null hypothesis. There is or is not sufficient evidence to support the claim that actress are generally younger when they won the award than actors. Since the confidence interval contains only zero, positive number values, or only negative number values, reject or warrent rejection of the null hypothesis.