I claim: The mean pulse rate (in beats per minute) of a certain group a conclusion about the null hypothesis. (Reject Ho or fail to reject H Reject Ho because the P-value is less than or equal to a. Reject Ho because the P-value is greater than a. Fail to reject Ho because the P-value is greater than a.

A hypothesis test is conducted with H0:μ=55 and H1:μ>55 A simple random sample of size n=64 is drawn, with x¯=62, and s=18.Compute the test statistic. (Round to two decimal places.) Determine the P-value. (Round to four decimals places.)

Only numbers 3 and 4

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Your friend at UCSB claims that Cal Poly students are tall. He looks up the average height of people in the United States and finds that it is 65 inches. You take a random sample of 54 CP students and find that their average height is 66 inches with a standard deviation of 1.8 inches.

5 a. Perform a Chi-square test Goodness of Fit test on following data to see whether Republicans and Democrats are equally represented in the sample. Report the resulting chi-square number. What is your political affiliation? Republican        102  Democrat              98                                200 = QUESTION 5 B Given the chi-square number for the question above, find the associated p-value and indicate the conclusion with regard to H0/H1.     We accept H1.     We accept H0.     We do not reject H1.     We do not reject H0.

Based on the Cl for the difference you see in this figure, you know that in the NHST approach: Interview Interest 14 12 10 6 2 B Male My Female M www A 2 0 Difference -2 -4 O This is a statistically significant result, p 0.05, fail to reject the null. O Both of the above. O No conclusions can be drawn about the NHST approach-this approach do not apply to paired designs.

A company wants to reduce heat generated in their factory by chainging the oil they use.  Nominal engine temperature remains at 135 C. Data generated from experiment are shown below. Based on this data perform a T-Test to determine if engine temperature is lower that 135 C. Please indicate your null and alternative hypotheses as well as type of T test performed.  Run Temp (C) 1 130 2 132 3 133 4 128 5 136 6 129 7 131

If the α-level (alpha level) is made larger, then: Group of answer choices The P-value will be smaller, as well. The hypothesis test will most likely be two-sided. The null hypothesis is less likely to be rejected. The null hypothesis is more likely to be rejected.

You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies:Ho : pA=0.2  pB=0.3;  pC=0.1;  pD=0.4Complete the table. Category ObservedFrequency ExpectedFrequency SquaredResidual A 38     B 41     C 10     D 57     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.