Which inequality symbol will merit a two-sided hypothesis test? O O O V # All of the aboive

Dice After getting trounced by your little brother in achildren’s game, you suspect the die he gave you to rollmay be unfair. To check, you roll it 60 times, recording the number of times each face ap-pears. Do these results cast doubt on the die’s fairness?a) If the die is fair, how many timeswould you expect each face toshow?b) To see if these results are unusual, will you test goodness-of-fit, homo-geneity, or independence?c) State your hypotheses.d) Check the conditions.e) How many degrees of freedom are there?f) Find x2and the P-value.g) State your conclusion.

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A highly selective quiz show wants their participants to have an average score greater than 90. They want to be able to assert with 95% confidence that this is true in their advertising, and they routinely test to see if the score has dropped below 90.. Select the correct symbols to use in the null hypothesis for this hypothesis test. Ho: ___________, ____________ 90.

​Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 688 randomly selected adults showed that 37​% of them would erase all of their personal information online if they could. Complete parts​ (a) and​ (b) below. dentify the null and alternative hypothese

9.15 Toxic Mushrooms? Cadmium, a heavy metal, is toxic to ani- mals. Mushrooms, however, are able to absorb and accumulate cad- mium at high concentrations. The Czech and Slovak governments have set a safety limit for cadmium in dry vegetables at 0.5 part per million (ppm). M. Melgar et al. measured the cadmium levels in a random sample of the edible mushroom Boletus pinicola and pub- lished the results in the paper "Influence of Some Factors in Toxi- city and Accumulation of Cd from Edible Wild Macrofungi in NW Spain" (Journal of Environmental Science and Health, Vol. B33(4), pp. 439-455). A hypothesis test is to be performed to decide whether the mean cadmium level in Boletus pinicola mushrooms is greater than the government's recommended limit.

Determine the null and alternative hypotheses. 7 P₂ Ho: P₁ H₁: P₁ The sample size is more than 5% of the population size example N P₂ A Get more help - pring 2023 Powell) is based on Sullivan: Fundamentals of Statistics, 6e

Determining the Hypotheses At least 80% of people support stricter gun laws. Express the null and alternative hypotheses in symbolic form for this claim (enter as a percentage). Ho:P H1:P Use the following codes to enter the following symbols: enter >= < enter <= + enter != ALVIYE

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security expert claims that more than 11​% of all homeowners have a home security alarm. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is​ left-tailed, right-tailed, or​ two-tailed. Explain your reasoning.