The the p-value is, the OA. smaller; more B. bigger; more C. more negative; more D. smaller; less confident we are in rejecting the null hypothesis.

Suppose a researcher compares the means of two independent groups that have the same number of participants in each group. The researcher uses the .05 level of significance and obtains a calculated value of t of 2.11. At least how many participants must be in each group in order to reject the null hypothesis?A. 10B. 9C. 8D. 11

The following table contains the number of successes and failures for three categories of a variable. Test whether the proportions are equal for each category at the α=0.1 level of significance.     Category 1 Category 2 Category 3   Failures 32 51 57 Successes 39 54 73 State the hypotheses. Choose the correct answer below.     A. H0​: The categories of the variable and success and failure are independent. H1​: The categories of the variable and success and failure are dependent.   B. H0​: The categories of the variable and success and failure are dependent. H1​: The categories of the variable and success and failure are independent.   C. H0​: p1=p2=p3 H1​: At least one of the proportions is different from the others.   D. H0​: μ1=E1 and μ2=E2 and μ3=E3 H1​: At least one mean is different from what is expected. What is the​ P-value?   nothing ​(Round to three decimal places as​ needed.) What conclusion can be​…

Decide if each of the following statements is True or False. If a sample of n = 10 scores is transformed into z-scores, there will be five positive z-scores and five negative z-scores. True False

A humane society claims that less than 61% of households in a certain country own a pet. In a random sample of 700 households in that country, 399 say they own a pet. At a= 0.05, is there enough evidence to support the society's claim? Complete parts (a) through (c) below. (a) Identify the claim and state H, and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. The percentage households in the country' that own a pet is not %. O B. Less than % of households in the country own a pet. O C. More than % of households in the country own a pet. O D. % of hoúseholds in the country own a pet.

20. Which of the following is a null hypothesis?   a. Pregnant women who drink cranberry juice will have lower urine bacterial counts than those who do not drink cranberry juice. b. The urine bacterial count of pregnant women who drink cranberry juice will be lower or equal to that of pregnant women who do not drink the juice. c. There will be a difference between ingestion of cranberry juice and among pregnant women who do and do not have high urine bacterial counts.

A psychologist found a study which claiming that 32% of patients who visit a psychologist have symptoms of anxiety. This psychologist had 44 patients visit. Let x = the number of patients that had symptoms of anxiety. (a) The random variable is which of the following? O the number of psychologists O the number of patients who visited the psychologist the number of patients who had symptoms of anxiety O the number of patients without symptoms of anxiety (b) How many total patients did the psychologist have visit?

The smaller the value of your Z obtained:   a. The more probable that you will be able to reject the null hypothesis   b. The more probable that you will fail to reject the null hypothesis   c. The smaller your probability of making a Type II error   d. The smaller your probability of making a Type I error