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It is reported by the local health office that at * least 39% of public schools in Las Pias should serve breakfast at a lower price. To verify this claim, a health professional randomly chose 300 public schools and observed that 36% of them serve breakfast at a lower price. Which of the following represents the null and alternative hypotheses? O Ho:pz39%Ha:p439% O Ho'p=39%Ha:p39% O Ho:p=39%Ha:p81 O H01u=81Ha1p81 O H01u=81Ha1p81 O This is a required question Which of the following values and percents * illustrates the confidence level? 0 32.8 0 90% - 94% A random sample of 65 gallons of paint selected from the production line of a paint manufacturing company showed a mean drying time of 50 minutes with a standard deviation of 2.7 minutes. Which of the following is true when the mean drying time of the paint is more than 48 minutes at = 0.05? The researcher used a t-test static The car manufacturer used a z-test statistic The car manufacturer used both z test static and t-test O The car manufacturer did not use both t-test static and z-test statistic A survey on 200 STEM students of PMMS shows that they read on an average of 15.7 hours per week. The margin of error is 2.2 hours at a 95% confidence level. What is the sample mean? O 2.2 15.7 O 95 200 When is the computed value said to be in the * rejection region? if it is greater than the critical value if it is less than the critical value if it is equal to the critical value if it is not equal to the critical value A chart type that is used to observe the * relationship between variables. Bivariate O Cartesian Plane O Scatter Plot O UnivariateA researcher reports that the average salary * of College Dean is more than $153,000. A sample of 35 College Dean has a mean salary of P65,700. At c1 = 0.01, test the claim that the College Deans earn more than $63,000 a month. The standard deviation of the population is 95,250. Based on the problem above, which of the following is the correct conclusion? 0 Since we reject the null hypothesis. we can conclude that it is true that the monthly salary ofa college dean is more than 963,000. 0 Since we reject the null hypothesis. we can conclude that it is not true that the monthly salary of a college dean is more than 1363.000. 0 Since we do not reject the null hypothesis, we can conclude that it is not true that the monthly salary at a college dean is more than 1363.000. 0 the given information is not sufcient to make a conclusion. A kind of test statistics is used when the * sample size is less than 30. Your answer It is a data that focuses on the * comparison of two variables. Your answer It indicates the probability with which the estimation * of the location of a statistical parameter in a sample survey is also true for the population. Your answer It is a graph of collection of * ordered pairs (x, y) Your answer The symbol used in representing * alternative hypothesis. Your answer It pertains to the set of all values for which the null * hypothesis is to be rejected. Your answer The symbol used in representing * null hypothesis. Your answer A range of values that is used to * estimate a parameter Your answer It is a gap between the estimated value and the * actual value of para meter. Your answer A kind of test statistics is used when the sample size * is greater than or equal to 30. Your answer It is the probability of rejecting the null hypothesis in * favor the alternative hypothesis when it is really true and denoted by alpha. Your answer The value that separates the rejection region * from the acceptance region. Your answer A printer manufacturing company claims that * its new ink efficient printer can print an average of 1500 pages of word documents with standard deviation of 60. Thirty five (35) of the printers showed a mean of 1475 pages. Does this support the company's claim? Use 95% confidence level. Calculate the Z-computed value. (population mean) Your answer The researcher wants to test his belief that * 50% or 0.5 of the population of rats are female. From his collected samples. 23 out of 50 are female. Would this support his claim? Use or = 0.05. Calculate the z- computed value (population proportion) Your answer A random sample of 5 students from a statistics class was asked about the number of hours they spent in studying and the score they obtained in a 10-point exam. As a summary, the following are being calculated; 2 3: =18, E y = 36, 2 y = 141, Z x2 = 74, E y: = 274 and n =5. Calculate the Pearson r_.[round off to 3 decimal places) Your answer Edward distributed a survey to his fellow students asking them how many hours they'd spent playing sports in the past clay. He also asked them to rate their mood on a scale from O to 10, with 10 being the happiest. A line was fir to the data to model the relationship. Hmdmir; Nutlldw' I]. 5 1 1 .5 2 2.5 I 3.5 Al 4.5 Hourl pinyin. Inm- What linear regression equation best describes the given model? Your